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/list-ext_flag_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 16:18:30,224 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 16:18:30,225 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 16:18:30,238 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 16:18:30,238 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 16:18:30,239 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 16:18:30,240 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 16:18:30,241 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 16:18:30,243 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 16:18:30,243 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 16:18:30,244 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 16:18:30,244 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 16:18:30,245 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 16:18:30,246 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 16:18:30,247 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 16:18:30,248 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 16:18:30,249 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 16:18:30,251 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 16:18:30,252 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 16:18:30,252 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 16:18:30,254 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 16:18:30,254 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 16:18:30,254 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 16:18:30,255 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 16:18:30,256 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 16:18:30,257 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 16:18:30,257 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 16:18:30,257 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 16:18:30,258 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 16:18:30,258 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 16:18:30,259 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 16:18:30,259 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 [2018-04-11 16:18:30,279 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 16:18:30,279 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 16:18:30,280 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 16:18:30,280 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 16:18:30,280 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 16:18:30,280 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 16:18:30,280 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 16:18:30,280 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 16:18:30,280 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 16:18:30,281 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 16:18:30,281 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 16:18:30,281 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 16:18:30,281 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 16:18:30,281 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 16:18:30,281 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 16:18:30,281 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 16:18:30,282 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 16:18:30,282 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 16:18:30,282 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 16:18:30,282 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 16:18:30,282 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 16:18:30,282 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 16:18:30,282 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 16:18:30,283 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 16:18:30,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 16:18:30,318 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 16:18:30,321 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 16:18:30,322 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 16:18:30,323 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 16:18:30,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,599 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG47ac7b64c [2018-04-11 16:18:30,757 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 16:18:30,757 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 16:18:30,758 INFO L168 CDTParser]: Scanning list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,765 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 16:18:30,766 INFO L215 ultiparseSymbolTable]: [2018-04-11 16:18:30,766 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 16:18:30,766 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__exit ('exit') in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,766 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,766 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 16:18:30,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____int32_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__time_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,766 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____suseconds_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__caddr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__List in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__u_int in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__mode_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____rlim64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_mutex_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____u_short in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__fd_set in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____rlim_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____time_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____timer_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____blksize_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__int8_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____caddr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____u_char in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____off64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,767 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____ssize_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_mutexattr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____qaddr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____fsfilcnt_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____dev_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__key_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__u_int32_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__fsblkcnt_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____id_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____u_long in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____int8_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__u_char in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__blkcnt_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__off_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____pthread_list_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__u_short in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,768 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____fsblkcnt64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__clock_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____fsid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__gid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__ulong in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____intptr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_barrier_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____mode_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__blksize_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_attr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,769 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__lldiv_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____socklen_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____ino_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__uid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__int16_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____uint32_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_cond_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____int16_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__u_int16_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__size_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,770 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_once_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__div_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____daddr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__clockid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____key_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____clockid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_spinlock_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____uint8_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__quad_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____sigset_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__fd_mask in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__suseconds_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,771 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__wchar_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____useconds_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__uint in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__loff_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__nlink_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__ushort in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____int64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____u_quad_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__u_long in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____gid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____fd_mask in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,772 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____quad_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____pid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____sig_atomic_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____loff_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__int64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_condattr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__u_int8_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____uint16_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__daddr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__fsid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____WAIT_STATUS in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____clock_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__register_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__sigset_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__timer_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_barrierattr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,773 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____nlink_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____fsfilcnt64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__u_int64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__ino_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____uint64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__ssize_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__int32_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__u_quad_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____off_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____uid_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____swblk_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__fsfilcnt_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_rwlockattr_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____blkcnt64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__ldiv_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____ino64_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_key_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____fsblkcnt_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__pthread_rwlock_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__id_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____u_int in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i__dev_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,774 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext_flag___true_valid_memsafety_i____blkcnt_t in list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:30,787 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG47ac7b64c [2018-04-11 16:18:30,791 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 16:18:30,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 16:18:30,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 16:18:30,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 16:18:30,797 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 16:18:30,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 04:18:30" (1/1) ... [2018-04-11 16:18:30,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40596c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:30, skipping insertion in model container [2018-04-11 16:18:30,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 04:18:30" (1/1) ... [2018-04-11 16:18:30,809 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 16:18:30,828 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 16:18:30,944 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 16:18:30,976 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 16:18:30,981 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 113 non ball SCCs. Number of states in SCCs 113. [2018-04-11 16:18:31,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31 WrapperNode [2018-04-11 16:18:31,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 16:18:31,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 16:18:31,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 16:18:31,021 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 16:18:31,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31" (1/1) ... [2018-04-11 16:18:31,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31" (1/1) ... [2018-04-11 16:18:31,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31" (1/1) ... [2018-04-11 16:18:31,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31" (1/1) ... [2018-04-11 16:18:31,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31" (1/1) ... [2018-04-11 16:18:31,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31" (1/1) ... [2018-04-11 16:18:31,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31" (1/1) ... [2018-04-11 16:18:31,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 16:18:31,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 16:18:31,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 16:18:31,052 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 16:18:31,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31" (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 [2018-04-11 16:18:31,131 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 16:18:31,131 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 16:18:31,131 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flist_ext_flag___true_valid_memsafety_i__exit [2018-04-11 16:18:31,131 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 16:18:31,131 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-11 16:18:31,131 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 16:18:31,132 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 16:18:31,132 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 16:18:31,132 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 16:18:31,132 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 16:18:31,132 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 16:18:31,132 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 16:18:31,132 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 16:18:31,132 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 16:18:31,132 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 16:18:31,133 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 16:18:31,134 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 16:18:31,135 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 16:18:31,135 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 16:18:31,135 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 16:18:31,135 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 16:18:31,135 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 16:18:31,135 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 16:18:31,135 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 16:18:31,135 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 16:18:31,135 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 16:18:31,136 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 16:18:31,137 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flist_ext_flag___true_valid_memsafety_i__exit [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 16:18:31,138 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 16:18:31,139 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 16:18:31,140 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 16:18:31,141 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 16:18:31,142 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 16:18:31,142 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 16:18:31,142 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-11 16:18:31,142 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-11 16:18:31,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 16:18:31,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 16:18:31,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 16:18:31,142 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 16:18:31,474 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 16:18:31,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 04:18:31 BoogieIcfgContainer [2018-04-11 16:18:31,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 16:18:31,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 16:18:31,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 16:18:31,477 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 16:18:31,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 04:18:30" (1/3) ... [2018-04-11 16:18:31,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc2e45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 04:18:31, skipping insertion in model container [2018-04-11 16:18:31,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:18:31" (2/3) ... [2018-04-11 16:18:31,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc2e45d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 04:18:31, skipping insertion in model container [2018-04-11 16:18:31,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 04:18:31" (3/3) ... [2018-04-11 16:18:31,479 INFO L107 eAbstractionObserver]: Analyzing ICFG list-ext_flag_1_true-valid-memsafety.i [2018-04-11 16:18:31,484 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 16:18:31,490 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 37 error locations. [2018-04-11 16:18:31,523 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 16:18:31,524 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 16:18:31,524 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 16:18:31,524 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 16:18:31,524 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 16:18:31,524 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 16:18:31,525 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 16:18:31,525 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 16:18:31,525 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 16:18:31,525 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 16:18:31,537 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2018-04-11 16:18:31,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-04-11 16:18:31,543 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:31,543 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:18:31,544 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:31,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1370019485, now seen corresponding path program 1 times [2018-04-11 16:18:31,548 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:31,548 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:31,575 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:31,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:31,575 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:31,600 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:31,620 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:18:31,620 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 16:18:31,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-11 16:18:31,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-11 16:18:31,630 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-11 16:18:31,631 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 2 states. [2018-04-11 16:18:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:31,645 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2018-04-11 16:18:31,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-11 16:18:31,646 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-04-11 16:18:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:31,653 INFO L225 Difference]: With dead ends: 101 [2018-04-11 16:18:31,654 INFO L226 Difference]: Without dead ends: 93 [2018-04-11 16:18:31,655 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-11 16:18:31,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-04-11 16:18:31,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-04-11 16:18:31,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-04-11 16:18:31,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2018-04-11 16:18:31,683 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 12 [2018-04-11 16:18:31,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:31,683 INFO L459 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2018-04-11 16:18:31,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-11 16:18:31,683 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2018-04-11 16:18:31,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 16:18:31,684 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:31,684 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:18:31,684 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:31,684 INFO L82 PathProgramCache]: Analyzing trace with hash -871406561, now seen corresponding path program 1 times [2018-04-11 16:18:31,684 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:31,684 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:31,685 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:31,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:31,685 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:31,701 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:31,749 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:18:31,749 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 16:18:31,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 16:18:31,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 16:18:31,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:18:31,751 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand 5 states. [2018-04-11 16:18:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:31,937 INFO L93 Difference]: Finished difference Result 105 states and 113 transitions. [2018-04-11 16:18:31,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 16:18:31,937 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-11 16:18:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:31,938 INFO L225 Difference]: With dead ends: 105 [2018-04-11 16:18:31,938 INFO L226 Difference]: Without dead ends: 105 [2018-04-11 16:18:31,939 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 [2018-04-11 16:18:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-04-11 16:18:31,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 89. [2018-04-11 16:18:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-11 16:18:31,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2018-04-11 16:18:31,945 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 15 [2018-04-11 16:18:31,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:31,945 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2018-04-11 16:18:31,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 16:18:31,946 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2018-04-11 16:18:31,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 16:18:31,946 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:31,946 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:18:31,946 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:31,946 INFO L82 PathProgramCache]: Analyzing trace with hash -871406560, now seen corresponding path program 1 times [2018-04-11 16:18:31,947 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:31,947 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:31,947 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:31,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:31,948 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:31,961 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:32,013 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:18:32,013 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 16:18:32,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 16:18:32,014 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 16:18:32,014 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:18:32,014 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand 5 states. [2018-04-11 16:18:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:32,192 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2018-04-11 16:18:32,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 16:18:32,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-11 16:18:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:32,193 INFO L225 Difference]: With dead ends: 126 [2018-04-11 16:18:32,193 INFO L226 Difference]: Without dead ends: 126 [2018-04-11 16:18:32,194 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 [2018-04-11 16:18:32,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-04-11 16:18:32,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 114. [2018-04-11 16:18:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-04-11 16:18:32,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 125 transitions. [2018-04-11 16:18:32,200 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 125 transitions. Word has length 15 [2018-04-11 16:18:32,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:32,200 INFO L459 AbstractCegarLoop]: Abstraction has 114 states and 125 transitions. [2018-04-11 16:18:32,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 16:18:32,200 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 125 transitions. [2018-04-11 16:18:32,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 16:18:32,201 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:32,201 INFO L355 BasicCegarLoop]: trace histogram [2, 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] [2018-04-11 16:18:32,201 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:32,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1171854978, now seen corresponding path program 1 times [2018-04-11 16:18:32,202 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:32,202 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:32,203 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:32,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:32,203 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:32,217 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:32,262 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:18:32,262 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 16:18:32,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 16:18:32,263 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 16:18:32,263 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 16:18:32,263 INFO L87 Difference]: Start difference. First operand 114 states and 125 transitions. Second operand 6 states. [2018-04-11 16:18:32,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:32,452 INFO L93 Difference]: Finished difference Result 166 states and 176 transitions. [2018-04-11 16:18:32,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 16:18:32,455 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-04-11 16:18:32,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:32,456 INFO L225 Difference]: With dead ends: 166 [2018-04-11 16:18:32,456 INFO L226 Difference]: Without dead ends: 166 [2018-04-11 16:18:32,456 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-04-11 16:18:32,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-04-11 16:18:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 118. [2018-04-11 16:18:32,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-04-11 16:18:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 129 transitions. [2018-04-11 16:18:32,462 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 129 transitions. Word has length 28 [2018-04-11 16:18:32,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:32,463 INFO L459 AbstractCegarLoop]: Abstraction has 118 states and 129 transitions. [2018-04-11 16:18:32,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 16:18:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 129 transitions. [2018-04-11 16:18:32,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 16:18:32,464 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:32,464 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:18:32,464 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:32,464 INFO L82 PathProgramCache]: Analyzing trace with hash -99298509, now seen corresponding path program 1 times [2018-04-11 16:18:32,464 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:32,464 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:32,465 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:32,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:32,465 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:32,485 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:32,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:32,531 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:18:32,531 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 16:18:32,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 16:18:32,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 16:18:32,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:18:32,532 INFO L87 Difference]: Start difference. First operand 118 states and 129 transitions. Second operand 7 states. [2018-04-11 16:18:32,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:32,707 INFO L93 Difference]: Finished difference Result 129 states and 141 transitions. [2018-04-11 16:18:32,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 16:18:32,707 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-04-11 16:18:32,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:32,708 INFO L225 Difference]: With dead ends: 129 [2018-04-11 16:18:32,708 INFO L226 Difference]: Without dead ends: 129 [2018-04-11 16:18:32,709 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-04-11 16:18:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-04-11 16:18:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 116. [2018-04-11 16:18:32,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-04-11 16:18:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2018-04-11 16:18:32,714 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 127 transitions. Word has length 30 [2018-04-11 16:18:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:32,714 INFO L459 AbstractCegarLoop]: Abstraction has 116 states and 127 transitions. [2018-04-11 16:18:32,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 16:18:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 127 transitions. [2018-04-11 16:18:32,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 16:18:32,715 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:32,715 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:18:32,715 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:32,716 INFO L82 PathProgramCache]: Analyzing trace with hash -99298508, now seen corresponding path program 1 times [2018-04-11 16:18:32,716 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:32,716 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:32,717 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:32,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:32,717 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:32,729 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:32,795 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:18:32,795 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 16:18:32,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 16:18:32,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 16:18:32,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:18:32,796 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. Second operand 7 states. [2018-04-11 16:18:33,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:33,024 INFO L93 Difference]: Finished difference Result 143 states and 154 transitions. [2018-04-11 16:18:33,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 16:18:33,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-04-11 16:18:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:33,025 INFO L225 Difference]: With dead ends: 143 [2018-04-11 16:18:33,025 INFO L226 Difference]: Without dead ends: 143 [2018-04-11 16:18:33,025 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-04-11 16:18:33,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-04-11 16:18:33,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 97. [2018-04-11 16:18:33,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-04-11 16:18:33,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2018-04-11 16:18:33,029 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 30 [2018-04-11 16:18:33,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:33,029 INFO L459 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2018-04-11 16:18:33,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 16:18:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2018-04-11 16:18:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 16:18:33,030 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:33,030 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] [2018-04-11 16:18:33,031 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:33,031 INFO L82 PathProgramCache]: Analyzing trace with hash 296729036, now seen corresponding path program 1 times [2018-04-11 16:18:33,031 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:33,031 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:33,032 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:33,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:33,032 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:33,046 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:33,050 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:18:33,051 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:18:33,051 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:18:33,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:33,079 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:18:33,124 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int)) (and (= 0 (select |c_old(#valid)| main_~p~0.base)) (= (store |c_old(#valid)| main_~p~0.base 0) |c_#valid|))) is different from true [2018-04-11 16:18:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:33,131 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:18:33,131 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 16:18:33,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 16:18:33,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 16:18:33,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2018-04-11 16:18:33,137 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand 7 states. [2018-04-11 16:18:33,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:33,273 INFO L93 Difference]: Finished difference Result 136 states and 148 transitions. [2018-04-11 16:18:33,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 16:18:33,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-04-11 16:18:33,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:33,274 INFO L225 Difference]: With dead ends: 136 [2018-04-11 16:18:33,274 INFO L226 Difference]: Without dead ends: 131 [2018-04-11 16:18:33,274 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=50, Unknown=2, NotChecked=14, Total=90 [2018-04-11 16:18:33,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-04-11 16:18:33,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 102. [2018-04-11 16:18:33,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-04-11 16:18:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2018-04-11 16:18:33,281 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 30 [2018-04-11 16:18:33,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:33,281 INFO L459 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2018-04-11 16:18:33,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 16:18:33,281 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2018-04-11 16:18:33,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 16:18:33,282 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:33,282 INFO L355 BasicCegarLoop]: trace histogram [2, 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] [2018-04-11 16:18:33,282 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:33,283 INFO L82 PathProgramCache]: Analyzing trace with hash -439023006, now seen corresponding path program 1 times [2018-04-11 16:18:33,283 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:33,283 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:33,283 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:33,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:33,284 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:33,294 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:33,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:33,390 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:18:33,390 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 16:18:33,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 16:18:33,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 16:18:33,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-11 16:18:33,391 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand 8 states. [2018-04-11 16:18:33,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:33,532 INFO L93 Difference]: Finished difference Result 124 states and 133 transitions. [2018-04-11 16:18:33,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 16:18:33,532 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-04-11 16:18:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:33,533 INFO L225 Difference]: With dead ends: 124 [2018-04-11 16:18:33,533 INFO L226 Difference]: Without dead ends: 113 [2018-04-11 16:18:33,533 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-04-11 16:18:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-04-11 16:18:33,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 91. [2018-04-11 16:18:33,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-04-11 16:18:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2018-04-11 16:18:33,536 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 33 [2018-04-11 16:18:33,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:33,536 INFO L459 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2018-04-11 16:18:33,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 16:18:33,536 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2018-04-11 16:18:33,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 16:18:33,537 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:33,537 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2018-04-11 16:18:33,537 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:33,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1749825554, now seen corresponding path program 1 times [2018-04-11 16:18:33,538 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:33,538 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:33,538 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:33,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:33,539 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:33,551 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:33,557 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:18:33,558 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:18:33,558 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:18:33,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:33,589 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:18:33,627 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 [2018-04-11 16:18:33,628 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 [2018-04-11 16:18:33,629 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,630 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,636 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,636 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-11 16:18:33,648 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:33,649 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:33,649 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-11 16:18:33,650 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,656 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,656 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-11 16:18:33,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:33,679 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 10 treesize of output 9 [2018-04-11 16:18:33,679 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,686 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:30 [2018-04-11 16:18:33,699 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 20 treesize of output 16 [2018-04-11 16:18:33,702 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 16 treesize of output 4 [2018-04-11 16:18:33,702 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,707 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. [2018-04-11 16:18:33,708 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:21 [2018-04-11 16:18:33,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-04-11 16:18:33,747 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 [2018-04-11 16:18:33,747 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,750 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,756 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:18:33,756 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:28 [2018-04-11 16:18:33,819 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-04-11 16:18:33,821 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:33,821 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 7 [2018-04-11 16:18:33,822 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,825 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 5 treesize of output 1 [2018-04-11 16:18:33,825 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,826 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:33,831 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:38, output treesize:3 [2018-04-11 16:18:33,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:33,841 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:18:33,841 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 16:18:33,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 16:18:33,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 16:18:33,842 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2018-04-11 16:18:33,842 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 16 states. [2018-04-11 16:18:34,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:34,527 INFO L93 Difference]: Finished difference Result 210 states and 225 transitions. [2018-04-11 16:18:34,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 16:18:34,527 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 43 [2018-04-11 16:18:34,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:34,528 INFO L225 Difference]: With dead ends: 210 [2018-04-11 16:18:34,528 INFO L226 Difference]: Without dead ends: 208 [2018-04-11 16:18:34,528 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2018-04-11 16:18:34,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-04-11 16:18:34,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 114. [2018-04-11 16:18:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-04-11 16:18:34,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 127 transitions. [2018-04-11 16:18:34,531 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 127 transitions. Word has length 43 [2018-04-11 16:18:34,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:34,531 INFO L459 AbstractCegarLoop]: Abstraction has 114 states and 127 transitions. [2018-04-11 16:18:34,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 16:18:34,531 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 127 transitions. [2018-04-11 16:18:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 16:18:34,532 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:34,532 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2018-04-11 16:18:34,533 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:34,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1169196616, now seen corresponding path program 1 times [2018-04-11 16:18:34,533 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:34,533 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:34,534 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:34,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:34,534 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:34,545 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:34,549 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:18:34,549 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:18:34,550 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:18:34,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:34,582 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:18:34,611 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:34,612 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:34,613 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:34,614 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 28 [2018-04-11 16:18:34,615 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,622 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,623 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-11 16:18:34,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:34,658 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 10 treesize of output 9 [2018-04-11 16:18:34,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,660 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,669 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-11 16:18:34,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2018-04-11 16:18:34,732 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 16 treesize of output 15 [2018-04-11 16:18:34,733 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,746 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,751 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. [2018-04-11 16:18:34,751 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:45 [2018-04-11 16:18:34,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 39 [2018-04-11 16:18:34,829 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:34,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2018-04-11 16:18:34,831 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,837 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 7 treesize of output 1 [2018-04-11 16:18:34,837 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,840 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:34,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:18:34,847 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:60, output treesize:15 [2018-04-11 16:18:34,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:34,898 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:18:34,898 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 16:18:34,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 16:18:34,898 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 16:18:34,900 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-04-11 16:18:34,900 INFO L87 Difference]: Start difference. First operand 114 states and 127 transitions. Second operand 16 states. [2018-04-11 16:18:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:53,545 INFO L93 Difference]: Finished difference Result 206 states and 227 transitions. [2018-04-11 16:18:53,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 16:18:53,545 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 43 [2018-04-11 16:18:53,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:53,546 INFO L225 Difference]: With dead ends: 206 [2018-04-11 16:18:53,546 INFO L226 Difference]: Without dead ends: 206 [2018-04-11 16:18:53,547 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2018-04-11 16:18:53,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-04-11 16:18:53,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 141. [2018-04-11 16:18:53,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-04-11 16:18:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 159 transitions. [2018-04-11 16:18:53,549 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 159 transitions. Word has length 43 [2018-04-11 16:18:53,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:53,550 INFO L459 AbstractCegarLoop]: Abstraction has 141 states and 159 transitions. [2018-04-11 16:18:53,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 16:18:53,550 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 159 transitions. [2018-04-11 16:18:53,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 16:18:53,551 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:53,551 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2018-04-11 16:18:53,551 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:53,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1169196615, now seen corresponding path program 1 times [2018-04-11 16:18:53,551 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:53,551 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:53,552 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:53,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:53,552 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:53,562 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:53,571 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:18:53,571 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:18:53,571 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:18:53,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:53,598 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:18:53,623 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 [2018-04-11 16:18:53,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,634 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:53,634 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:53,635 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-11 16:18:53,635 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,641 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-04-11 16:18:53,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:53,685 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 10 treesize of output 9 [2018-04-11 16:18:53,685 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,687 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:53,703 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 10 treesize of output 9 [2018-04-11 16:18:53,703 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,705 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,716 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,716 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:45, output treesize:40 [2018-04-11 16:18:53,760 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 66 [2018-04-11 16:18:53,762 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 16 treesize of output 15 [2018-04-11 16:18:53,762 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,767 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-04-11 16:18:53,782 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 16 treesize of output 15 [2018-04-11 16:18:53,782 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,787 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:18:53,797 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:84, output treesize:64 [2018-04-11 16:18:53,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 52 [2018-04-11 16:18:53,890 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:53,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2018-04-11 16:18:53,891 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,899 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 7 treesize of output 1 [2018-04-11 16:18:53,900 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2018-04-11 16:18:53,921 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:53,921 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 15 treesize of output 11 [2018-04-11 16:18:53,922 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,925 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 7 treesize of output 1 [2018-04-11 16:18:53,926 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,926 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:53,932 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:88, output treesize:9 [2018-04-11 16:18:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:53,952 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:18:53,952 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 16:18:53,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 16:18:53,952 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 16:18:53,953 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2018-04-11 16:18:53,953 INFO L87 Difference]: Start difference. First operand 141 states and 159 transitions. Second operand 16 states. [2018-04-11 16:18:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:54,858 INFO L93 Difference]: Finished difference Result 240 states and 262 transitions. [2018-04-11 16:18:54,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 16:18:54,858 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 43 [2018-04-11 16:18:54,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:54,859 INFO L225 Difference]: With dead ends: 240 [2018-04-11 16:18:54,859 INFO L226 Difference]: Without dead ends: 240 [2018-04-11 16:18:54,859 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2018-04-11 16:18:54,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-04-11 16:18:54,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 139. [2018-04-11 16:18:54,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-04-11 16:18:54,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 156 transitions. [2018-04-11 16:18:54,861 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 156 transitions. Word has length 43 [2018-04-11 16:18:54,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:54,862 INFO L459 AbstractCegarLoop]: Abstraction has 139 states and 156 transitions. [2018-04-11 16:18:54,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 16:18:54,862 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 156 transitions. [2018-04-11 16:18:54,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 16:18:54,862 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:54,862 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2018-04-11 16:18:54,862 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:54,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1470349368, now seen corresponding path program 1 times [2018-04-11 16:18:54,863 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:54,863 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:54,863 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:54,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:54,863 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:54,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:54,876 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:18:54,876 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:18:54,876 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:18:54,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:54,899 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:18:54,919 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 [2018-04-11 16:18:54,920 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 [2018-04-11 16:18:54,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:54,922 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:54,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:54,937 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-11 16:18:54,948 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:54,949 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:54,949 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-11 16:18:54,950 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:54,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:54,955 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-11 16:18:54,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:54,978 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 10 treesize of output 9 [2018-04-11 16:18:54,979 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:54,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:54,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:54,985 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:30 [2018-04-11 16:18:55,003 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 20 treesize of output 16 [2018-04-11 16:18:55,005 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 16 treesize of output 4 [2018-04-11 16:18:55,005 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,007 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,010 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. [2018-04-11 16:18:55,011 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:21 [2018-04-11 16:18:55,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-04-11 16:18:55,055 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 [2018-04-11 16:18:55,056 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,059 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,064 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:18:55,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:28 [2018-04-11 16:18:55,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-04-11 16:18:55,106 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:55,107 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 7 [2018-04-11 16:18:55,107 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,113 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 5 treesize of output 1 [2018-04-11 16:18:55,113 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,114 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,121 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,121 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:38, output treesize:3 [2018-04-11 16:18:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:55,145 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:18:55,145 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 16:18:55,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 16:18:55,146 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 16:18:55,146 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2018-04-11 16:18:55,146 INFO L87 Difference]: Start difference. First operand 139 states and 156 transitions. Second operand 15 states. [2018-04-11 16:18:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:55,755 INFO L93 Difference]: Finished difference Result 244 states and 266 transitions. [2018-04-11 16:18:55,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 16:18:55,755 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2018-04-11 16:18:55,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:55,756 INFO L225 Difference]: With dead ends: 244 [2018-04-11 16:18:55,756 INFO L226 Difference]: Without dead ends: 244 [2018-04-11 16:18:55,756 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2018-04-11 16:18:55,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-04-11 16:18:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 139. [2018-04-11 16:18:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-04-11 16:18:55,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 155 transitions. [2018-04-11 16:18:55,760 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 155 transitions. Word has length 45 [2018-04-11 16:18:55,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:55,760 INFO L459 AbstractCegarLoop]: Abstraction has 139 states and 155 transitions. [2018-04-11 16:18:55,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 16:18:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 155 transitions. [2018-04-11 16:18:55,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 16:18:55,761 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:55,761 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2018-04-11 16:18:55,761 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:55,761 INFO L82 PathProgramCache]: Analyzing trace with hash -2064037992, now seen corresponding path program 1 times [2018-04-11 16:18:55,761 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:55,761 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:55,762 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:55,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:55,762 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:55,771 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:55,773 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:18:55,773 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:18:55,773 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:18:55,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:55,799 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:18:55,812 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 [2018-04-11 16:18:55,812 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,815 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:18:55,840 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 [2018-04-11 16:18:55,842 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 [2018-04-11 16:18:55,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,844 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,851 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,851 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2018-04-11 16:18:55,865 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:55,865 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 12 treesize of output 15 [2018-04-11 16:18:55,865 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,873 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:55,874 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:55,874 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-11 16:18:55,875 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,880 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:31 [2018-04-11 16:18:55,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:18:55,902 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:55,910 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 10 treesize of output 9 [2018-04-11 16:18:55,910 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,911 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,917 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. [2018-04-11 16:18:55,917 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:51, output treesize:30 [2018-04-11 16:18:55,928 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 20 treesize of output 16 [2018-04-11 16:18:55,929 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 16 treesize of output 4 [2018-04-11 16:18:55,929 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,929 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,933 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. [2018-04-11 16:18:55,933 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:21 [2018-04-11 16:18:55,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-04-11 16:18:55,959 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 [2018-04-11 16:18:55,960 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,963 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:55,969 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:18:55,969 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:28 [2018-04-11 16:18:56,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-04-11 16:18:56,034 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 5 treesize of output 1 [2018-04-11 16:18:56,034 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:56,038 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:56,038 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 7 [2018-04-11 16:18:56,038 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:56,040 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:56,045 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:56,045 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:38, output treesize:3 [2018-04-11 16:18:56,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:56,056 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:18:56,056 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-11 16:18:56,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 16:18:56,056 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 16:18:56,056 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-04-11 16:18:56,056 INFO L87 Difference]: Start difference. First operand 139 states and 155 transitions. Second operand 15 states. [2018-04-11 16:18:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:56,851 INFO L93 Difference]: Finished difference Result 244 states and 265 transitions. [2018-04-11 16:18:56,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 16:18:56,851 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2018-04-11 16:18:56,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:56,852 INFO L225 Difference]: With dead ends: 244 [2018-04-11 16:18:56,852 INFO L226 Difference]: Without dead ends: 244 [2018-04-11 16:18:56,852 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=667, Unknown=0, NotChecked=0, Total=870 [2018-04-11 16:18:56,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-04-11 16:18:56,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 139. [2018-04-11 16:18:56,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-04-11 16:18:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 154 transitions. [2018-04-11 16:18:56,855 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 154 transitions. Word has length 45 [2018-04-11 16:18:56,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:56,856 INFO L459 AbstractCegarLoop]: Abstraction has 139 states and 154 transitions. [2018-04-11 16:18:56,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 16:18:56,856 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 154 transitions. [2018-04-11 16:18:56,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-11 16:18:56,856 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:56,857 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:18:56,857 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:56,857 INFO L82 PathProgramCache]: Analyzing trace with hash -2025973194, now seen corresponding path program 1 times [2018-04-11 16:18:56,857 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:56,857 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:56,858 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:56,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:56,858 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:56,869 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:56,873 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:18:56,873 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:18:56,873 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:18:56,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:56,905 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:18:56,935 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 [2018-04-11 16:18:56,936 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:56,955 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:56,956 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:56,957 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-11 16:18:56,958 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:56,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:56,965 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-04-11 16:18:56,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:56,997 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 10 treesize of output 9 [2018-04-11 16:18:56,998 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:56,999 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:57,015 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 10 treesize of output 9 [2018-04-11 16:18:57,015 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,017 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,027 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,028 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:48, output treesize:40 [2018-04-11 16:18:57,077 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 14 [2018-04-11 16:18:57,081 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 14 treesize of output 13 [2018-04-11 16:18:57,082 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,083 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,090 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,090 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:57, output treesize:59 [2018-04-11 16:18:57,106 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 [2018-04-11 16:18:57,107 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2018-04-11 16:18:57,122 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 16 treesize of output 15 [2018-04-11 16:18:57,123 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,127 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-04-11 16:18:57,142 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 16 treesize of output 15 [2018-04-11 16:18:57,142 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,145 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:18:57,153 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:113, output treesize:72 [2018-04-11 16:18:57,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 54 [2018-04-11 16:18:57,215 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 7 treesize of output 1 [2018-04-11 16:18:57,215 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,221 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:57,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2018-04-11 16:18:57,222 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,225 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2018-04-11 16:18:57,238 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 7 treesize of output 1 [2018-04-11 16:18:57,238 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,242 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:57,242 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-04-11 16:18:57,242 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,244 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,250 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:18:57,250 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:96, output treesize:17 [2018-04-11 16:18:57,330 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 [2018-04-11 16:18:57,331 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:57,331 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 7 [2018-04-11 16:18:57,332 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,333 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,338 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:57,338 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:3 [2018-04-11 16:18:57,355 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:57,355 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:18:57,374 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 16:18:57,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 16:18:57,374 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 16:18:57,374 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2018-04-11 16:18:57,374 INFO L87 Difference]: Start difference. First operand 139 states and 154 transitions. Second operand 19 states. [2018-04-11 16:18:58,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:58,587 INFO L93 Difference]: Finished difference Result 231 states and 249 transitions. [2018-04-11 16:18:58,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 16:18:58,587 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2018-04-11 16:18:58,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:58,588 INFO L225 Difference]: With dead ends: 231 [2018-04-11 16:18:58,588 INFO L226 Difference]: Without dead ends: 229 [2018-04-11 16:18:58,588 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=289, Invalid=1271, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 16:18:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-04-11 16:18:58,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 144. [2018-04-11 16:18:58,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-04-11 16:18:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 160 transitions. [2018-04-11 16:18:58,591 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 160 transitions. Word has length 52 [2018-04-11 16:18:58,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:58,591 INFO L459 AbstractCegarLoop]: Abstraction has 144 states and 160 transitions. [2018-04-11 16:18:58,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 16:18:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 160 transitions. [2018-04-11 16:18:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-11 16:18:58,591 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:58,592 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:18:58,592 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:58,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1445344256, now seen corresponding path program 2 times [2018-04-11 16:18:58,592 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:58,592 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:58,593 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:58,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:58,593 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:58,603 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:58,610 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:18:58,611 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:18:58,611 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:18:58,611 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:18:58,640 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:18:58,640 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:18:58,644 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:18:58,674 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:58,674 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:58,675 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-11 16:18:58,675 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,681 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,682 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-04-11 16:18:58,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:58,714 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 10 treesize of output 9 [2018-04-11 16:18:58,714 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,716 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:58,729 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 10 treesize of output 9 [2018-04-11 16:18:58,729 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,730 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,736 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:40, output treesize:29 [2018-04-11 16:18:58,768 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 14 [2018-04-11 16:18:58,770 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 14 treesize of output 19 [2018-04-11 16:18:58,770 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,771 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,787 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:55, output treesize:60 [2018-04-11 16:18:58,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 86 [2018-04-11 16:18:58,806 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 22 treesize of output 21 [2018-04-11 16:18:58,806 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,812 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 82 [2018-04-11 16:18:58,824 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 22 treesize of output 21 [2018-04-11 16:18:58,824 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,829 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,836 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:104, output treesize:84 [2018-04-11 16:18:58,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 58 [2018-04-11 16:18:58,885 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:58,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2018-04-11 16:18:58,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,891 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 1 [2018-04-11 16:18:58,892 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2018-04-11 16:18:58,905 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:58,905 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 31 treesize of output 21 [2018-04-11 16:18:58,905 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,910 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 5 treesize of output 1 [2018-04-11 16:18:58,911 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,913 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,917 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:89, output treesize:11 [2018-04-11 16:18:58,948 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 [2018-04-11 16:18:58,949 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:18:58,950 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 7 [2018-04-11 16:18:58,950 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,951 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,954 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:58,954 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2018-04-11 16:18:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:18:58,968 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:18:58,968 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 16:18:58,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 16:18:58,968 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 16:18:58,968 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2018-04-11 16:18:58,968 INFO L87 Difference]: Start difference. First operand 144 states and 160 transitions. Second operand 19 states. [2018-04-11 16:18:59,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:18:59,713 INFO L93 Difference]: Finished difference Result 207 states and 222 transitions. [2018-04-11 16:18:59,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 16:18:59,713 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2018-04-11 16:18:59,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:18:59,714 INFO L225 Difference]: With dead ends: 207 [2018-04-11 16:18:59,714 INFO L226 Difference]: Without dead ends: 203 [2018-04-11 16:18:59,714 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=234, Invalid=1026, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 16:18:59,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-04-11 16:18:59,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 142. [2018-04-11 16:18:59,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-04-11 16:18:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 157 transitions. [2018-04-11 16:18:59,717 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 157 transitions. Word has length 52 [2018-04-11 16:18:59,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:18:59,717 INFO L459 AbstractCegarLoop]: Abstraction has 142 states and 157 transitions. [2018-04-11 16:18:59,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 16:18:59,717 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 157 transitions. [2018-04-11 16:18:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 16:18:59,718 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:18:59,718 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:18:59,718 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:18:59,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1914527616, now seen corresponding path program 1 times [2018-04-11 16:18:59,718 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:18:59,718 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:18:59,719 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:59,719 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:18:59,719 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:18:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:59,729 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:18:59,733 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:18:59,733 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:18:59,734 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:18:59,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:18:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:18:59,771 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:18:59,779 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 [2018-04-11 16:18:59,780 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,781 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,781 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:18:59,828 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:59,828 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 15 [2018-04-11 16:18:59,829 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,839 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:59,839 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:18:59,840 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-11 16:18:59,840 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,847 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2018-04-11 16:18:59,875 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 18 treesize of output 8 [2018-04-11 16:18:59,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,884 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:18:59,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:18:59,889 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,891 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,898 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. [2018-04-11 16:18:59,898 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:30 [2018-04-11 16:18:59,980 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-04-11 16:18:59,982 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 16 treesize of output 15 [2018-04-11 16:18:59,982 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,986 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:18:59,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:18:59,993 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:52, output treesize:42 [2018-04-11 16:19:00,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 38 [2018-04-11 16:19:00,067 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 1 case distinctions, treesize of input 24 treesize of output 21 [2018-04-11 16:19:00,068 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:00,075 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 7 treesize of output 1 [2018-04-11 16:19:00,076 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:00,080 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:00,088 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 16:19:00,088 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:51, output treesize:13 [2018-04-11 16:19:00,125 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 16:19:00,126 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:00,126 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 16:19:00,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 16:19:00,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 16:19:00,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-04-11 16:19:00,127 INFO L87 Difference]: Start difference. First operand 142 states and 157 transitions. Second operand 16 states. [2018-04-11 16:19:00,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:00,963 INFO L93 Difference]: Finished difference Result 198 states and 213 transitions. [2018-04-11 16:19:00,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 16:19:00,963 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2018-04-11 16:19:00,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:00,963 INFO L225 Difference]: With dead ends: 198 [2018-04-11 16:19:00,963 INFO L226 Difference]: Without dead ends: 197 [2018-04-11 16:19:00,964 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=270, Invalid=990, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 16:19:00,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-04-11 16:19:00,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 147. [2018-04-11 16:19:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-04-11 16:19:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 162 transitions. [2018-04-11 16:19:00,966 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 162 transitions. Word has length 54 [2018-04-11 16:19:00,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:00,967 INFO L459 AbstractCegarLoop]: Abstraction has 147 states and 162 transitions. [2018-04-11 16:19:00,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 16:19:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 162 transitions. [2018-04-11 16:19:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-04-11 16:19:00,967 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:00,968 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:00,968 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:00,968 INFO L82 PathProgramCache]: Analyzing trace with hash 222443310, now seen corresponding path program 1 times [2018-04-11 16:19:00,968 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:00,968 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:00,969 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:00,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:00,969 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:00,980 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:00,982 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:00,982 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:00,982 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:00,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:01,008 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:01,023 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 [2018-04-11 16:19:01,023 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,025 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:19:01,054 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:01,055 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 12 treesize of output 15 [2018-04-11 16:19:01,055 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,065 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:01,066 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:01,067 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:01,068 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 28 [2018-04-11 16:19:01,068 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,075 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,075 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:31 [2018-04-11 16:19:01,098 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:19:01,098 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:01,117 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 10 treesize of output 9 [2018-04-11 16:19:01,117 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,118 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,123 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. [2018-04-11 16:19:01,124 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:51, output treesize:36 [2018-04-11 16:19:01,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2018-04-11 16:19:01,203 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 16 treesize of output 15 [2018-04-11 16:19:01,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,207 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:01,213 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:48 [2018-04-11 16:19:01,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 39 [2018-04-11 16:19:01,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2018-04-11 16:19:01,287 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:01,300 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 7 treesize of output 1 [2018-04-11 16:19:01,300 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,309 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:01,322 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 2 xjuncts. [2018-04-11 16:19:01,322 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:57, output treesize:40 [2018-04-11 16:19:01,413 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:01,414 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:01,415 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 28 [2018-04-11 16:19:01,415 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:01,420 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. [2018-04-11 16:19:01,420 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2018-04-11 16:19:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 16:19:01,479 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:01,479 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-11 16:19:01,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 16:19:01,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 16:19:01,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2018-04-11 16:19:01,480 INFO L87 Difference]: Start difference. First operand 147 states and 162 transitions. Second operand 19 states. [2018-04-11 16:19:02,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:02,436 INFO L93 Difference]: Finished difference Result 192 states and 208 transitions. [2018-04-11 16:19:02,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 16:19:02,436 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 57 [2018-04-11 16:19:02,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:02,436 INFO L225 Difference]: With dead ends: 192 [2018-04-11 16:19:02,436 INFO L226 Difference]: Without dead ends: 192 [2018-04-11 16:19:02,437 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=282, Invalid=1200, Unknown=0, NotChecked=0, Total=1482 [2018-04-11 16:19:02,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-04-11 16:19:02,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 155. [2018-04-11 16:19:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-04-11 16:19:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 171 transitions. [2018-04-11 16:19:02,439 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 171 transitions. Word has length 57 [2018-04-11 16:19:02,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:02,450 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 171 transitions. [2018-04-11 16:19:02,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 16:19:02,450 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 171 transitions. [2018-04-11 16:19:02,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-04-11 16:19:02,451 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:02,451 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:02,451 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:02,451 INFO L82 PathProgramCache]: Analyzing trace with hash 222443311, now seen corresponding path program 1 times [2018-04-11 16:19:02,451 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:02,451 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:02,452 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:02,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:02,452 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:02,461 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:02,467 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:02,467 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:02,467 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:02,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:02,496 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:02,538 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:02,539 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:02,540 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-11 16:19:02,540 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,549 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 [2018-04-11 16:19:02,550 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,555 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2018-04-11 16:19:02,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:02,577 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 10 treesize of output 9 [2018-04-11 16:19:02,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,578 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:02,588 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 10 treesize of output 9 [2018-04-11 16:19:02,589 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,590 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,597 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:48, output treesize:43 [2018-04-11 16:19:02,635 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-04-11 16:19:02,636 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 16 treesize of output 15 [2018-04-11 16:19:02,636 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,639 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 56 [2018-04-11 16:19:02,651 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 16 treesize of output 15 [2018-04-11 16:19:02,651 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,655 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,662 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:02,662 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:87, output treesize:67 [2018-04-11 16:19:02,800 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 52 [2018-04-11 16:19:02,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 31 [2018-04-11 16:19:02,806 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:02,817 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 7 treesize of output 1 [2018-04-11 16:19:02,817 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,824 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:02,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2018-04-11 16:19:02,841 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 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 16:19:02,841 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:02,847 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 7 treesize of output 1 [2018-04-11 16:19:02,847 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,851 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:02,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2018-04-11 16:19:02,855 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 7 treesize of output 1 [2018-04-11 16:19:02,855 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,862 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:02,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-04-11 16:19:02,863 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,867 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:02,882 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-04-11 16:19:02,882 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:94, output treesize:40 [2018-04-11 16:19:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:02,963 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:02,963 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 16:19:02,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 16:19:02,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 16:19:02,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2018-04-11 16:19:02,964 INFO L87 Difference]: Start difference. First operand 155 states and 171 transitions. Second operand 22 states. [2018-04-11 16:19:04,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:04,221 INFO L93 Difference]: Finished difference Result 217 states and 233 transitions. [2018-04-11 16:19:04,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 16:19:04,221 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2018-04-11 16:19:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:04,222 INFO L225 Difference]: With dead ends: 217 [2018-04-11 16:19:04,222 INFO L226 Difference]: Without dead ends: 217 [2018-04-11 16:19:04,222 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=346, Invalid=1460, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 16:19:04,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-04-11 16:19:04,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 153. [2018-04-11 16:19:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-04-11 16:19:04,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 168 transitions. [2018-04-11 16:19:04,224 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 168 transitions. Word has length 57 [2018-04-11 16:19:04,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:04,225 INFO L459 AbstractCegarLoop]: Abstraction has 153 states and 168 transitions. [2018-04-11 16:19:04,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 16:19:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 168 transitions. [2018-04-11 16:19:04,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-11 16:19:04,225 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:04,225 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:04,225 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:04,225 INFO L82 PathProgramCache]: Analyzing trace with hash 445288706, now seen corresponding path program 2 times [2018-04-11 16:19:04,225 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:04,225 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:04,226 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:04,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:04,226 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:04,233 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:04,236 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:04,236 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:04,236 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:04,236 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:04,260 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:04,260 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:04,262 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:04,264 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 [2018-04-11 16:19:04,264 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,267 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 [2018-04-11 16:19:04,268 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,270 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,270 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-11 16:19:04,287 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 [2018-04-11 16:19:04,289 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 [2018-04-11 16:19:04,289 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,290 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,295 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,295 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-04-11 16:19:04,305 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,306 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,306 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 [2018-04-11 16:19:04,306 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,314 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 12 treesize of output 15 [2018-04-11 16:19:04,314 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,341 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:28 [2018-04-11 16:19:04,382 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 13 treesize of output 10 [2018-04-11 16:19:04,384 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 10 treesize of output 9 [2018-04-11 16:19:04,384 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,386 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,399 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:52 [2018-04-11 16:19:04,474 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-04-11 16:19:04,481 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 16 treesize of output 15 [2018-04-11 16:19:04,481 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,486 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,499 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. [2018-04-11 16:19:04,499 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:71, output treesize:58 [2018-04-11 16:19:04,517 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-11 16:19:04,522 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 14 treesize of output 13 [2018-04-11 16:19:04,522 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,525 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,536 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. [2018-04-11 16:19:04,536 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:69, output treesize:71 [2018-04-11 16:19:04,558 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,558 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 30 treesize of output 43 [2018-04-11 16:19:04,559 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,576 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,576 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,577 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 [2018-04-11 16:19:04,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,590 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. [2018-04-11 16:19:04,590 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:85, output treesize:78 [2018-04-11 16:19:04,637 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 13 treesize of output 16 [2018-04-11 16:19:04,639 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 16 treesize of output 15 [2018-04-11 16:19:04,640 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,642 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,665 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,668 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 72 treesize of output 73 [2018-04-11 16:19:04,670 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 10 treesize of output 9 [2018-04-11 16:19:04,670 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,686 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,702 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:04,702 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:104, output treesize:102 [2018-04-11 16:19:04,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 86 [2018-04-11 16:19:04,736 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 35 [2018-04-11 16:19:04,737 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:04,750 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 10 [2018-04-11 16:19:04,750 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,758 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:04,773 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 16:19:04,774 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-04-11 16:19:04,774 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,776 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:04,786 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:135, output treesize:51 [2018-04-11 16:19:04,875 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 55 [2018-04-11 16:19:04,885 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 44 treesize of output 42 [2018-04-11 16:19:04,885 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:04,909 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:04,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 29 [2018-04-11 16:19:04,914 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:04,927 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:04,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:04,949 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:65, output treesize:103 [2018-04-11 16:19:05,096 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:05,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-04-11 16:19:05,112 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2018-04-11 16:19:05,113 INFO L267 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts. [2018-04-11 16:19:05,127 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 5 treesize of output 1 [2018-04-11 16:19:05,128 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:05,130 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:05,144 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 2 xjuncts. [2018-04-11 16:19:05,144 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:55, output treesize:68 [2018-04-11 16:19:05,276 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:05,276 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:05,276 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 16:19:05,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 16:19:05,277 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 16:19:05,277 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2018-04-11 16:19:05,277 INFO L87 Difference]: Start difference. First operand 153 states and 168 transitions. Second operand 22 states. [2018-04-11 16:19:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:06,882 INFO L93 Difference]: Finished difference Result 261 states and 283 transitions. [2018-04-11 16:19:06,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 16:19:06,882 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 58 [2018-04-11 16:19:06,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:06,883 INFO L225 Difference]: With dead ends: 261 [2018-04-11 16:19:06,883 INFO L226 Difference]: Without dead ends: 258 [2018-04-11 16:19:06,883 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=281, Invalid=1525, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 16:19:06,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-04-11 16:19:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 176. [2018-04-11 16:19:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-11 16:19:06,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 195 transitions. [2018-04-11 16:19:06,886 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 195 transitions. Word has length 58 [2018-04-11 16:19:06,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:06,886 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 195 transitions. [2018-04-11 16:19:06,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 16:19:06,886 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 195 transitions. [2018-04-11 16:19:06,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-11 16:19:06,886 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:06,887 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:06,887 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:06,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1025917644, now seen corresponding path program 3 times [2018-04-11 16:19:06,887 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:06,887 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:06,887 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,888 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:06,888 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:06,896 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:06,901 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:06,901 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:06,901 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:06,902 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:19:06,928 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-11 16:19:06,928 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:06,932 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:06,951 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 [2018-04-11 16:19:06,952 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:06,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:06,955 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:06,982 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:06,982 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 12 treesize of output 15 [2018-04-11 16:19:06,983 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:06,994 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:06,995 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:06,996 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:06,996 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,005 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,005 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:31 [2018-04-11 16:19:07,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:07,038 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 10 treesize of output 9 [2018-04-11 16:19:07,038 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,039 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,046 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,046 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:49 [2018-04-11 16:19:07,090 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:07,090 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:07,091 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 21 treesize of output 40 [2018-04-11 16:19:07,091 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,103 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:07,104 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:07,104 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:07,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 20 treesize of output 21 [2018-04-11 16:19:07,105 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,112 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:50 [2018-04-11 16:19:07,147 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:07,157 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 46 treesize of output 47 [2018-04-11 16:19:07,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-04-11 16:19:07,169 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,187 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 14 [2018-04-11 16:19:07,211 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 14 treesize of output 13 [2018-04-11 16:19:07,211 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,213 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,228 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:78, output treesize:79 [2018-04-11 16:19:07,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-04-11 16:19:07,279 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 15 treesize of output 3 [2018-04-11 16:19:07,280 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,282 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,296 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. [2018-04-11 16:19:07,296 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:118, output treesize:95 [2018-04-11 16:19:07,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2018-04-11 16:19:07,397 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 18 treesize of output 17 [2018-04-11 16:19:07,397 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,406 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,415 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. [2018-04-11 16:19:07,415 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:110, output treesize:96 [2018-04-11 16:19:07,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 44 [2018-04-11 16:19:07,515 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 56 [2018-04-11 16:19:07,539 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:07,540 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 31 treesize of output 23 [2018-04-11 16:19:07,540 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 17 treesize of output 9 [2018-04-11 16:19:07,548 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,551 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:07,557 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:115, output treesize:5 [2018-04-11 16:19:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:07,599 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:07,599 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 16:19:07,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 16:19:07,599 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 16:19:07,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2018-04-11 16:19:07,599 INFO L87 Difference]: Start difference. First operand 176 states and 195 transitions. Second operand 21 states. [2018-04-11 16:19:08,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:08,926 INFO L93 Difference]: Finished difference Result 295 states and 323 transitions. [2018-04-11 16:19:08,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-11 16:19:08,926 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 58 [2018-04-11 16:19:08,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:08,927 INFO L225 Difference]: With dead ends: 295 [2018-04-11 16:19:08,927 INFO L226 Difference]: Without dead ends: 295 [2018-04-11 16:19:08,927 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=322, Invalid=1570, Unknown=0, NotChecked=0, Total=1892 [2018-04-11 16:19:08,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2018-04-11 16:19:08,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 208. [2018-04-11 16:19:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-04-11 16:19:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 233 transitions. [2018-04-11 16:19:08,931 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 233 transitions. Word has length 58 [2018-04-11 16:19:08,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:08,931 INFO L459 AbstractCegarLoop]: Abstraction has 208 states and 233 transitions. [2018-04-11 16:19:08,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 16:19:08,931 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 233 transitions. [2018-04-11 16:19:08,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-11 16:19:08,932 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:08,932 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:08,932 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:08,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1025917645, now seen corresponding path program 2 times [2018-04-11 16:19:08,932 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:08,933 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:08,933 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:08,933 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:08,933 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:08,946 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:08,961 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:08,962 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:08,962 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:08,962 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:08,998 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:08,998 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:09,002 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:09,004 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 [2018-04-11 16:19:09,005 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,010 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 [2018-04-11 16:19:09,010 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,014 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,014 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 16:19:09,053 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,053 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 12 treesize of output 15 [2018-04-11 16:19:09,054 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,065 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,066 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,067 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:09,067 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,076 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,077 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-04-11 16:19:09,111 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 13 treesize of output 10 [2018-04-11 16:19:09,113 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 10 treesize of output 9 [2018-04-11 16:19:09,113 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,114 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,127 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 13 treesize of output 10 [2018-04-11 16:19:09,128 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 10 treesize of output 9 [2018-04-11 16:19:09,128 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,130 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,160 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:60, output treesize:61 [2018-04-11 16:19:09,216 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,217 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,217 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 46 [2018-04-11 16:19:09,217 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,232 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,232 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,233 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 22 treesize of output 32 [2018-04-11 16:19:09,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,243 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. [2018-04-11 16:19:09,243 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:81, output treesize:73 [2018-04-11 16:19:09,279 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,282 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 23 treesize of output 30 [2018-04-11 16:19:09,283 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 16 treesize of output 15 [2018-04-11 16:19:09,283 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,287 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,302 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:09,304 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 69 treesize of output 70 [2018-04-11 16:19:09,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:09,306 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,312 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,324 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. [2018-04-11 16:19:09,325 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:96, output treesize:103 [2018-04-11 16:19:09,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 151 [2018-04-11 16:19:09,431 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 34 treesize of output 33 [2018-04-11 16:19:09,431 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,441 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 140 [2018-04-11 16:19:09,471 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 34 treesize of output 33 [2018-04-11 16:19:09,471 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,480 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:09,493 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:210, output treesize:178 [2018-04-11 16:19:09,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 121 [2018-04-11 16:19:09,593 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 17 treesize of output 1 [2018-04-11 16:19:09,593 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 53 treesize of output 37 [2018-04-11 16:19:09,609 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:09,641 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:09,642 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 65 treesize of output 45 [2018-04-11 16:19:09,642 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,649 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:09,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2018-04-11 16:19:09,669 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 1 [2018-04-11 16:19:09,669 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,675 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:09,675 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 15 treesize of output 11 [2018-04-11 16:19:09,675 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,679 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 7 treesize of output 1 [2018-04-11 16:19:09,679 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,680 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:09,690 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. [2018-04-11 16:19:09,691 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:206, output treesize:36 [2018-04-11 16:19:09,776 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:09,776 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:09,776 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 16:19:09,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 16:19:09,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 16:19:09,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2018-04-11 16:19:09,776 INFO L87 Difference]: Start difference. First operand 208 states and 233 transitions. Second operand 21 states. [2018-04-11 16:19:11,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:11,620 INFO L93 Difference]: Finished difference Result 301 states and 331 transitions. [2018-04-11 16:19:11,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 16:19:11,620 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 58 [2018-04-11 16:19:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:11,621 INFO L225 Difference]: With dead ends: 301 [2018-04-11 16:19:11,621 INFO L226 Difference]: Without dead ends: 301 [2018-04-11 16:19:11,621 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=252, Invalid=1388, Unknown=0, NotChecked=0, Total=1640 [2018-04-11 16:19:11,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-04-11 16:19:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 206. [2018-04-11 16:19:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-04-11 16:19:11,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 230 transitions. [2018-04-11 16:19:11,625 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 230 transitions. Word has length 58 [2018-04-11 16:19:11,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:11,625 INFO L459 AbstractCegarLoop]: Abstraction has 206 states and 230 transitions. [2018-04-11 16:19:11,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 16:19:11,625 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 230 transitions. [2018-04-11 16:19:11,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-11 16:19:11,626 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:11,626 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:19:11,626 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:11,626 INFO L82 PathProgramCache]: Analyzing trace with hash 2146210892, now seen corresponding path program 2 times [2018-04-11 16:19:11,626 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:11,626 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:11,627 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:11,627 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:11,627 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:11,637 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:11,642 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:11,642 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:11,642 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:11,643 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:11,672 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:11,672 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:11,675 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:11,681 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 [2018-04-11 16:19:11,681 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,684 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,685 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:11,727 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 [2018-04-11 16:19:11,729 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 [2018-04-11 16:19:11,729 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,731 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,737 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-11 16:19:11,748 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:11,749 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:11,749 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:11,750 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,757 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,757 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:34 [2018-04-11 16:19:11,792 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 13 treesize of output 10 [2018-04-11 16:19:11,794 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 10 treesize of output 9 [2018-04-11 16:19:11,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,795 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,804 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:46 [2018-04-11 16:19:11,871 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:11,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-04-11 16:19:11,876 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 16 treesize of output 15 [2018-04-11 16:19:11,876 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,879 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,888 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. [2018-04-11 16:19:11,888 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:65, output treesize:52 [2018-04-11 16:19:11,900 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:11,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-11 16:19:11,905 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 14 treesize of output 13 [2018-04-11 16:19:11,905 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,916 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. [2018-04-11 16:19:11,917 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:63, output treesize:65 [2018-04-11 16:19:11,930 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:11,931 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:11,931 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:11,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 22 treesize of output 32 [2018-04-11 16:19:11,932 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,940 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. [2018-04-11 16:19:11,940 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:63 [2018-04-11 16:19:11,969 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:11,972 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 56 treesize of output 57 [2018-04-11 16:19:11,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:11,974 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:11,989 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. [2018-04-11 16:19:11,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:75 [2018-04-11 16:19:12,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 54 [2018-04-11 16:19:12,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 32 treesize of output 20 [2018-04-11 16:19:12,009 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 9 [2018-04-11 16:19:12,015 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,018 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,025 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:93, output treesize:36 [2018-04-11 16:19:12,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-04-11 16:19:12,140 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 [2018-04-11 16:19:12,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,147 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:12,160 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:43 [2018-04-11 16:19:12,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2018-04-11 16:19:12,217 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:12,218 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 7 [2018-04-11 16:19:12,218 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,225 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 5 treesize of output 1 [2018-04-11 16:19:12,225 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,230 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 5 treesize of output 1 [2018-04-11 16:19:12,230 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,231 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,238 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:12,238 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-04-11 16:19:12,277 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:12,277 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:12,277 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 16:19:12,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 16:19:12,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 16:19:12,278 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2018-04-11 16:19:12,278 INFO L87 Difference]: Start difference. First operand 206 states and 230 transitions. Second operand 20 states. [2018-04-11 16:19:13,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:13,854 INFO L93 Difference]: Finished difference Result 323 states and 354 transitions. [2018-04-11 16:19:13,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 16:19:13,856 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 60 [2018-04-11 16:19:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:13,856 INFO L225 Difference]: With dead ends: 323 [2018-04-11 16:19:13,856 INFO L226 Difference]: Without dead ends: 323 [2018-04-11 16:19:13,857 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=266, Invalid=1374, Unknown=0, NotChecked=0, Total=1640 [2018-04-11 16:19:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2018-04-11 16:19:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 206. [2018-04-11 16:19:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-04-11 16:19:13,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 229 transitions. [2018-04-11 16:19:13,860 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 229 transitions. Word has length 60 [2018-04-11 16:19:13,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:13,860 INFO L459 AbstractCegarLoop]: Abstraction has 206 states and 229 transitions. [2018-04-11 16:19:13,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 16:19:13,860 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 229 transitions. [2018-04-11 16:19:13,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-11 16:19:13,860 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:13,860 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:19:13,860 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:13,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1388176468, now seen corresponding path program 1 times [2018-04-11 16:19:13,861 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:13,861 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:13,861 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:13,861 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:13,861 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:13,872 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:13,877 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:13,877 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:13,877 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:13,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:13,907 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:13,912 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 [2018-04-11 16:19:13,912 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:13,915 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:13,916 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:13,941 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:13,942 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:13,943 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:13,943 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:13,951 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:13,951 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-11 16:19:13,999 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 13 treesize of output 10 [2018-04-11 16:19:14,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:14,001 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,002 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,011 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,012 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:43 [2018-04-11 16:19:14,069 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,070 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,070 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 28 [2018-04-11 16:19:14,071 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,076 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,076 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:36 [2018-04-11 16:19:14,115 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:14,118 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 45 treesize of output 46 [2018-04-11 16:19:14,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:14,120 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,128 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,136 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:44 [2018-04-11 16:19:14,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 67 [2018-04-11 16:19:14,233 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 20 treesize of output 19 [2018-04-11 16:19:14,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,240 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:14,249 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:82, output treesize:68 [2018-04-11 16:19:14,327 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2018-04-11 16:19:14,329 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 7 treesize of output 1 [2018-04-11 16:19:14,329 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,339 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 1 case distinctions, treesize of input 30 treesize of output 27 [2018-04-11 16:19:14,339 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:14,345 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-11 16:19:14,345 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 25 treesize of output 17 [2018-04-11 16:19:14,348 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:14,350 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:14,354 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:14,354 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:77, output treesize:11 [2018-04-11 16:19:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:14,389 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:14,389 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 16:19:14,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 16:19:14,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 16:19:14,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2018-04-11 16:19:14,390 INFO L87 Difference]: Start difference. First operand 206 states and 229 transitions. Second operand 20 states. [2018-04-11 16:19:15,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:15,511 INFO L93 Difference]: Finished difference Result 293 states and 322 transitions. [2018-04-11 16:19:15,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 16:19:15,511 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 60 [2018-04-11 16:19:15,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:15,512 INFO L225 Difference]: With dead ends: 293 [2018-04-11 16:19:15,512 INFO L226 Difference]: Without dead ends: 293 [2018-04-11 16:19:15,513 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=226, Invalid=1334, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 16:19:15,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2018-04-11 16:19:15,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 233. [2018-04-11 16:19:15,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-04-11 16:19:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 267 transitions. [2018-04-11 16:19:15,515 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 267 transitions. Word has length 60 [2018-04-11 16:19:15,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:15,515 INFO L459 AbstractCegarLoop]: Abstraction has 233 states and 267 transitions. [2018-04-11 16:19:15,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 16:19:15,515 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 267 transitions. [2018-04-11 16:19:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 16:19:15,516 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:15,516 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:19:15,516 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash -176104318, now seen corresponding path program 1 times [2018-04-11 16:19:15,516 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:15,516 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:15,517 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:15,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:15,517 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:15,528 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:15,534 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:15,534 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:15,534 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:15,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:15,563 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:15,596 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 [2018-04-11 16:19:15,596 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,602 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 [2018-04-11 16:19:15,602 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,605 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,606 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-11 16:19:15,638 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:15,639 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:15,640 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:15,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,652 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 12 treesize of output 15 [2018-04-11 16:19:15,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,659 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,660 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:31 [2018-04-11 16:19:15,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:19:15,683 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:15,702 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 10 treesize of output 9 [2018-04-11 16:19:15,702 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,704 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,713 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. [2018-04-11 16:19:15,713 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:51, output treesize:36 [2018-04-11 16:19:15,787 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:15,788 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:15,789 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:15,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 22 treesize of output 32 [2018-04-11 16:19:15,789 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,795 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. [2018-04-11 16:19:15,795 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:40 [2018-04-11 16:19:15,828 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:15,830 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 43 treesize of output 44 [2018-04-11 16:19:15,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:15,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,836 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,842 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. [2018-04-11 16:19:15,842 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:57 [2018-04-11 16:19:15,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 76 [2018-04-11 16:19:15,893 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 22 treesize of output 21 [2018-04-11 16:19:15,893 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,898 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,905 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:15,905 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:103, output treesize:87 [2018-04-11 16:19:15,955 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 66 [2018-04-11 16:19:15,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 21 treesize of output 13 [2018-04-11 16:19:15,956 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,964 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2018-04-11 16:19:15,964 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:15,972 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 7 treesize of output 1 [2018-04-11 16:19:15,972 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:15,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:15,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:15,985 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:96, output treesize:30 [2018-04-11 16:19:16,048 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:16,049 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 [2018-04-11 16:19:16,049 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:16,052 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. [2018-04-11 16:19:16,052 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:11 [2018-04-11 16:19:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:16,099 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:16,099 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 16:19:16,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 16:19:16,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 16:19:16,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2018-04-11 16:19:16,099 INFO L87 Difference]: Start difference. First operand 233 states and 267 transitions. Second operand 23 states. [2018-04-11 16:19:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:17,773 INFO L93 Difference]: Finished difference Result 288 states and 318 transitions. [2018-04-11 16:19:17,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-11 16:19:17,773 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 63 [2018-04-11 16:19:17,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:17,774 INFO L225 Difference]: With dead ends: 288 [2018-04-11 16:19:17,774 INFO L226 Difference]: Without dead ends: 288 [2018-04-11 16:19:17,775 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=300, Invalid=1862, Unknown=0, NotChecked=0, Total=2162 [2018-04-11 16:19:17,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-04-11 16:19:17,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 241. [2018-04-11 16:19:17,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-04-11 16:19:17,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 276 transitions. [2018-04-11 16:19:17,777 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 276 transitions. Word has length 63 [2018-04-11 16:19:17,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:17,777 INFO L459 AbstractCegarLoop]: Abstraction has 241 states and 276 transitions. [2018-04-11 16:19:17,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 16:19:17,778 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 276 transitions. [2018-04-11 16:19:17,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 16:19:17,778 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:17,778 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:19:17,778 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:17,779 INFO L82 PathProgramCache]: Analyzing trace with hash -176104317, now seen corresponding path program 1 times [2018-04-11 16:19:17,779 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:17,779 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:17,779 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:17,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:17,780 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:17,789 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:17,795 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:17,795 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:17,795 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:17,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:17,825 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:17,832 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 [2018-04-11 16:19:17,832 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,836 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 [2018-04-11 16:19:17,836 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,839 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-11 16:19:17,871 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:17,871 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 12 treesize of output 15 [2018-04-11 16:19:17,872 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,883 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:17,884 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:17,885 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 [2018-04-11 16:19:17,885 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,892 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,892 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-11 16:19:17,921 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 13 treesize of output 10 [2018-04-11 16:19:17,923 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 10 treesize of output 9 [2018-04-11 16:19:17,923 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,925 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,941 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 13 treesize of output 10 [2018-04-11 16:19:17,943 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 10 treesize of output 9 [2018-04-11 16:19:17,943 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,945 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,958 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:17,958 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:59, output treesize:54 [2018-04-11 16:19:18,052 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,053 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,054 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 30 treesize of output 53 [2018-04-11 16:19:18,054 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,075 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,076 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,076 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 13 [2018-04-11 16:19:18,077 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,092 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. [2018-04-11 16:19:18,092 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:68 [2018-04-11 16:19:18,143 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 23 treesize of output 30 [2018-04-11 16:19:18,149 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 16 treesize of output 15 [2018-04-11 16:19:18,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,175 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 59 treesize of output 60 [2018-04-11 16:19:18,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:18,181 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,197 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,215 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:18,215 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:94, output treesize:86 [2018-04-11 16:19:18,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 112 [2018-04-11 16:19:18,333 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 22 treesize of output 21 [2018-04-11 16:19:18,333 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,363 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 47 treesize of output 48 [2018-04-11 16:19:18,364 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 22 treesize of output 21 [2018-04-11 16:19:18,364 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,367 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:18,380 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:175, output treesize:143 [2018-04-11 16:19:18,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 88 [2018-04-11 16:19:18,445 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 7 treesize of output 1 [2018-04-11 16:19:18,445 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 43 treesize of output 27 [2018-04-11 16:19:18,455 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:18,467 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 1 case distinctions, treesize of input 33 treesize of output 26 [2018-04-11 16:19:18,467 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:18,479 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:18,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 52 [2018-04-11 16:19:18,503 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 7 treesize of output 1 [2018-04-11 16:19:18,503 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,512 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:18,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-04-11 16:19:18,513 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,518 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2018-04-11 16:19:18,522 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 7 treesize of output 1 [2018-04-11 16:19:18,522 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:18,532 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 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 16:19:18,533 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:18,539 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:18,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 12 dim-0 vars, and 4 xjuncts. [2018-04-11 16:19:18,565 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:161, output treesize:186 [2018-04-11 16:19:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:18,796 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:18,796 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 16:19:18,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 16:19:18,797 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 16:19:18,797 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2018-04-11 16:19:18,797 INFO L87 Difference]: Start difference. First operand 241 states and 276 transitions. Second operand 23 states. [2018-04-11 16:19:20,974 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 121 DAG size of output 100 [2018-04-11 16:19:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:20,990 INFO L93 Difference]: Finished difference Result 308 states and 337 transitions. [2018-04-11 16:19:20,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 16:19:20,991 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 63 [2018-04-11 16:19:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:20,991 INFO L225 Difference]: With dead ends: 308 [2018-04-11 16:19:20,991 INFO L226 Difference]: Without dead ends: 308 [2018-04-11 16:19:20,992 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=323, Invalid=2029, Unknown=0, NotChecked=0, Total=2352 [2018-04-11 16:19:20,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-04-11 16:19:20,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 228. [2018-04-11 16:19:20,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-04-11 16:19:20,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 262 transitions. [2018-04-11 16:19:20,994 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 262 transitions. Word has length 63 [2018-04-11 16:19:20,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:20,994 INFO L459 AbstractCegarLoop]: Abstraction has 228 states and 262 transitions. [2018-04-11 16:19:20,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 16:19:20,994 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 262 transitions. [2018-04-11 16:19:20,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 16:19:20,995 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:20,995 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:20,995 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:20,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1381091074, now seen corresponding path program 1 times [2018-04-11 16:19:20,995 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:20,995 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:20,996 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:20,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:20,996 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:21,002 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:21,004 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:21,004 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:21,004 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:21,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:21,019 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:21,105 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 13 treesize of output 10 [2018-04-11 16:19:21,106 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 10 treesize of output 9 [2018-04-11 16:19:21,106 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,108 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:44 [2018-04-11 16:19:21,166 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:21,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 59 [2018-04-11 16:19:21,170 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 16 treesize of output 15 [2018-04-11 16:19:21,170 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,174 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:21,181 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:56 [2018-04-11 16:19:21,234 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:21,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 55 [2018-04-11 16:19:21,236 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 7 treesize of output 1 [2018-04-11 16:19:21,236 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:21,244 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 30 [2018-04-11 16:19:21,245 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:21,252 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:21,261 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 2 xjuncts. [2018-04-11 16:19:21,261 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:65, output treesize:56 [2018-04-11 16:19:21,336 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int)) (let ((.cse0 (store |c_old(#valid)| main_~p~0.base 1))) (and (= 0 (select |c_old(#valid)| main_~p~0.base)) (= |c_#valid| (store (store .cse0 c_main_~t~0.base 1) main_~p~0.base 0)) (= (select .cse0 c_main_~t~0.base) 0)))) is different from true [2018-04-11 16:19:21,340 WARN L1033 $PredicateComparison]: unable to prove that (exists ((v_subst_9 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_9 1))) (and (= (store (store .cse0 c_main_~p~0.base 1) v_subst_9 0) |c_#valid|) (= 0 (select |c_old(#valid)| v_subst_9)) (= (select .cse0 c_main_~p~0.base) 0)))) is different from true [2018-04-11 16:19:21,349 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int) (v_subst_9 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_9 1))) (and (= (store (store (store .cse0 main_~p~0.base 1) v_subst_9 0) main_~p~0.base 0) |c_#valid|) (= 0 (select |c_old(#valid)| v_subst_9)) (= (select .cse0 main_~p~0.base) 0)))) is different from true [2018-04-11 16:19:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 3 not checked. [2018-04-11 16:19:21,381 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:21,381 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 16:19:21,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 16:19:21,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 16:19:21,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=240, Unknown=3, NotChecked=96, Total=380 [2018-04-11 16:19:21,382 INFO L87 Difference]: Start difference. First operand 228 states and 262 transitions. Second operand 20 states. [2018-04-11 16:19:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:22,085 INFO L93 Difference]: Finished difference Result 247 states and 281 transitions. [2018-04-11 16:19:22,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-11 16:19:22,085 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 63 [2018-04-11 16:19:22,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:22,086 INFO L225 Difference]: With dead ends: 247 [2018-04-11 16:19:22,086 INFO L226 Difference]: Without dead ends: 242 [2018-04-11 16:19:22,086 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=654, Unknown=3, NotChecked=162, Total=930 [2018-04-11 16:19:22,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-04-11 16:19:22,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2018-04-11 16:19:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-04-11 16:19:22,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 276 transitions. [2018-04-11 16:19:22,088 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 276 transitions. Word has length 63 [2018-04-11 16:19:22,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:22,088 INFO L459 AbstractCegarLoop]: Abstraction has 242 states and 276 transitions. [2018-04-11 16:19:22,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 16:19:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 276 transitions. [2018-04-11 16:19:22,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-11 16:19:22,089 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:22,089 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:19:22,089 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:22,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1341417836, now seen corresponding path program 2 times [2018-04-11 16:19:22,089 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:22,089 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:22,089 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:22,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:22,090 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:22,096 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:22,104 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:22,104 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:22,104 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:22,105 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:22,123 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:22,123 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:22,125 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:22,127 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 [2018-04-11 16:19:22,127 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,129 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,130 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:22,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,160 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,160 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 [2018-04-11 16:19:22,160 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,166 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,166 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-04-11 16:19:22,193 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 13 treesize of output 10 [2018-04-11 16:19:22,195 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 10 treesize of output 9 [2018-04-11 16:19:22,195 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,207 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 13 treesize of output 10 [2018-04-11 16:19:22,209 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 10 treesize of output 9 [2018-04-11 16:19:22,209 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,211 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,216 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,217 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:40, output treesize:29 [2018-04-11 16:19:22,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 73 [2018-04-11 16:19:22,267 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 22 treesize of output 21 [2018-04-11 16:19:22,267 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,272 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2018-04-11 16:19:22,306 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 22 treesize of output 21 [2018-04-11 16:19:22,306 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,311 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:22,320 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:88, output treesize:68 [2018-04-11 16:19:22,520 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:22,522 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 73 [2018-04-11 16:19:22,523 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:22,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2018-04-11 16:19:22,524 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:22,535 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 1 case distinctions, treesize of input 21 treesize of output 18 [2018-04-11 16:19:22,535 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:22,549 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:22,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2018-04-11 16:19:22,566 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:22,567 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2018-04-11 16:19:22,567 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,571 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 20 treesize of output 6 [2018-04-11 16:19:22,571 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,573 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2018-04-11 16:19:22,580 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 1 case distinctions, treesize of input 19 treesize of output 16 [2018-04-11 16:19:22,580 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:22,586 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 20 treesize of output 6 [2018-04-11 16:19:22,587 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,587 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 [2018-04-11 16:19:22,588 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:22,592 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:22,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 16:19:22,604 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 4 variables, input treesize:94, output treesize:24 [2018-04-11 16:19:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 16:19:22,687 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:22,687 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-11 16:19:22,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 16:19:22,688 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 16:19:22,688 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2018-04-11 16:19:22,688 INFO L87 Difference]: Start difference. First operand 242 states and 276 transitions. Second operand 19 states. [2018-04-11 16:19:24,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:24,009 INFO L93 Difference]: Finished difference Result 260 states and 294 transitions. [2018-04-11 16:19:24,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 16:19:24,009 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 66 [2018-04-11 16:19:24,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:24,010 INFO L225 Difference]: With dead ends: 260 [2018-04-11 16:19:24,010 INFO L226 Difference]: Without dead ends: 218 [2018-04-11 16:19:24,010 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=231, Invalid=1251, Unknown=0, NotChecked=0, Total=1482 [2018-04-11 16:19:24,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-04-11 16:19:24,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 203. [2018-04-11 16:19:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-04-11 16:19:24,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 234 transitions. [2018-04-11 16:19:24,012 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 234 transitions. Word has length 66 [2018-04-11 16:19:24,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:24,012 INFO L459 AbstractCegarLoop]: Abstraction has 203 states and 234 transitions. [2018-04-11 16:19:24,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 16:19:24,012 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 234 transitions. [2018-04-11 16:19:24,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 16:19:24,012 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:24,013 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:24,013 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:24,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1799993438, now seen corresponding path program 2 times [2018-04-11 16:19:24,013 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:24,013 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:24,013 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:24,013 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:24,014 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:24,021 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:24,023 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:24,024 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:24,024 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:24,024 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:24,052 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:24,052 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:24,055 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:24,099 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 [2018-04-11 16:19:24,099 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,103 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:19:24,125 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,126 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 12 treesize of output 15 [2018-04-11 16:19:24,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,135 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,136 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,136 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 [2018-04-11 16:19:24,136 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,142 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,142 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-11 16:19:24,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:24,164 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 10 treesize of output 9 [2018-04-11 16:19:24,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,166 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:24,177 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 10 treesize of output 9 [2018-04-11 16:19:24,178 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,179 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,187 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,188 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:62, output treesize:54 [2018-04-11 16:19:24,248 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 14 [2018-04-11 16:19:24,250 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 14 treesize of output 13 [2018-04-11 16:19:24,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,252 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,266 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. [2018-04-11 16:19:24,266 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:88, output treesize:90 [2018-04-11 16:19:24,297 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,298 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,298 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 30 treesize of output 53 [2018-04-11 16:19:24,299 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,322 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,322 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,323 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,323 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 13 [2018-04-11 16:19:24,324 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,338 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. [2018-04-11 16:19:24,338 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:104, output treesize:96 [2018-04-11 16:19:24,389 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,391 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 69 [2018-04-11 16:19:24,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:19:24,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,402 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,423 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 32 treesize of output 39 [2018-04-11 16:19:24,428 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 16 treesize of output 15 [2018-04-11 16:19:24,428 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,432 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,450 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. [2018-04-11 16:19:24,450 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:119, output treesize:116 [2018-04-11 16:19:24,560 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,562 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,563 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 25 treesize of output 59 [2018-04-11 16:19:24,564 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 36 treesize of output 58 [2018-04-11 16:19:24,565 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,570 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:24,590 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:175, output treesize:170 [2018-04-11 16:19:24,632 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,633 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,636 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,639 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 197 [2018-04-11 16:19:24,642 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 34 treesize of output 33 [2018-04-11 16:19:24,642 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,688 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,689 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 180 [2018-04-11 16:19:24,697 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 34 treesize of output 33 [2018-04-11 16:19:24,697 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,710 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,731 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:24,731 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:238, output treesize:206 [2018-04-11 16:19:24,848 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,848 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 55 [2018-04-11 16:19:24,849 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,873 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,874 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,874 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 139 [2018-04-11 16:19:24,878 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 17 treesize of output 1 [2018-04-11 16:19:24,878 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,889 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:24,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 64 [2018-04-11 16:19:24,890 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,898 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2018-04-11 16:19:24,899 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:24,906 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:24,924 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:24,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 63 [2018-04-11 16:19:24,928 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 30 treesize of output 13 [2018-04-11 16:19:24,929 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,939 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 5 treesize of output 1 [2018-04-11 16:19:24,939 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,946 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:24,947 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-04-11 16:19:24,947 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,950 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:24,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:24,960 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:234, output treesize:24 [2018-04-11 16:19:25,040 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:25,041 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:25,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-04-11 16:19:25,045 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 15 [2018-04-11 16:19:25,046 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,049 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:25,050 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 7 [2018-04-11 16:19:25,050 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,052 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,056 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:25,056 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:34, output treesize:3 [2018-04-11 16:19:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:25,092 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:25,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 16:19:25,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 16:19:25,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 16:19:25,093 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2018-04-11 16:19:25,093 INFO L87 Difference]: Start difference. First operand 203 states and 234 transitions. Second operand 27 states. [2018-04-11 16:19:27,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:27,371 INFO L93 Difference]: Finished difference Result 335 states and 375 transitions. [2018-04-11 16:19:27,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 16:19:27,371 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 67 [2018-04-11 16:19:27,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:27,372 INFO L225 Difference]: With dead ends: 335 [2018-04-11 16:19:27,372 INFO L226 Difference]: Without dead ends: 333 [2018-04-11 16:19:27,373 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=410, Invalid=2560, Unknown=0, NotChecked=0, Total=2970 [2018-04-11 16:19:27,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-04-11 16:19:27,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 232. [2018-04-11 16:19:27,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-04-11 16:19:27,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 268 transitions. [2018-04-11 16:19:27,375 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 268 transitions. Word has length 67 [2018-04-11 16:19:27,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:27,375 INFO L459 AbstractCegarLoop]: Abstraction has 232 states and 268 transitions. [2018-04-11 16:19:27,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 16:19:27,375 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 268 transitions. [2018-04-11 16:19:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 16:19:27,376 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:27,376 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:27,376 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:27,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1219364500, now seen corresponding path program 4 times [2018-04-11 16:19:27,376 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:27,376 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:27,377 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:27,377 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:27,377 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:27,385 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:27,393 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:27,394 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:27,394 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:27,394 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 16:19:27,424 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 16:19:27,425 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:27,453 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:27,470 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,470 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,471 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 [2018-04-11 16:19:27,471 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,475 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,476 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-04-11 16:19:27,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:27,495 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 10 treesize of output 9 [2018-04-11 16:19:27,496 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,497 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:27,507 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 10 treesize of output 9 [2018-04-11 16:19:27,507 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,509 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,516 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,516 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:45, output treesize:34 [2018-04-11 16:19:27,601 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,601 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,602 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,603 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,604 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 46 [2018-04-11 16:19:27,604 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,622 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,623 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:70 [2018-04-11 16:19:27,672 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,674 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 56 [2018-04-11 16:19:27,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:19:27,676 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,683 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,697 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 32 treesize of output 39 [2018-04-11 16:19:27,701 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 16 treesize of output 15 [2018-04-11 16:19:27,701 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,706 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,718 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:96, output treesize:78 [2018-04-11 16:19:27,783 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 163 [2018-04-11 16:19:27,785 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 27 [2018-04-11 16:19:27,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,792 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,804 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,813 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:27,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 140 [2018-04-11 16:19:27,816 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 27 [2018-04-11 16:19:27,816 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,835 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:27,847 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:200, output treesize:156 [2018-04-11 16:19:27,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 107 [2018-04-11 16:19:27,912 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 85 treesize of output 62 [2018-04-11 16:19:27,913 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,920 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 7 treesize of output 1 [2018-04-11 16:19:27,920 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,926 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:27,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:27,935 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:141, output treesize:83 [2018-04-11 16:19:27,999 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:28,000 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:28,002 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 63 [2018-04-11 16:19:28,003 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 7 treesize of output 1 [2018-04-11 16:19:28,003 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:28,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 22 treesize of output 16 [2018-04-11 16:19:28,011 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:28,018 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:28,018 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 27 treesize of output 19 [2018-04-11 16:19:28,019 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:28,024 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:28,031 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. [2018-04-11 16:19:28,031 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:92, output treesize:28 [2018-04-11 16:19:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:28,098 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:28,098 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 16:19:28,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 16:19:28,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 16:19:28,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2018-04-11 16:19:28,099 INFO L87 Difference]: Start difference. First operand 232 states and 268 transitions. Second operand 24 states. [2018-04-11 16:19:29,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:29,190 INFO L93 Difference]: Finished difference Result 277 states and 307 transitions. [2018-04-11 16:19:29,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-11 16:19:29,190 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 67 [2018-04-11 16:19:29,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:29,191 INFO L225 Difference]: With dead ends: 277 [2018-04-11 16:19:29,191 INFO L226 Difference]: Without dead ends: 277 [2018-04-11 16:19:29,191 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=321, Invalid=1749, Unknown=0, NotChecked=0, Total=2070 [2018-04-11 16:19:29,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2018-04-11 16:19:29,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 235. [2018-04-11 16:19:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-04-11 16:19:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 272 transitions. [2018-04-11 16:19:29,193 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 272 transitions. Word has length 67 [2018-04-11 16:19:29,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:29,193 INFO L459 AbstractCegarLoop]: Abstraction has 235 states and 272 transitions. [2018-04-11 16:19:29,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 16:19:29,193 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 272 transitions. [2018-04-11 16:19:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-04-11 16:19:29,194 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:29,194 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:29,194 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:29,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1219364499, now seen corresponding path program 3 times [2018-04-11 16:19:29,194 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:29,194 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:29,194 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:29,194 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:29,194 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:29,201 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:29,204 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:29,204 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:29,204 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:29,204 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:19:29,227 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-11 16:19:29,228 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:29,230 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:29,231 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 [2018-04-11 16:19:29,231 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,233 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,234 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:29,257 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,257 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,258 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 [2018-04-11 16:19:29,258 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,275 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,275 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-04-11 16:19:29,300 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 13 treesize of output 10 [2018-04-11 16:19:29,302 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 10 treesize of output 9 [2018-04-11 16:19:29,302 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,304 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,315 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 13 treesize of output 10 [2018-04-11 16:19:29,317 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 10 treesize of output 9 [2018-04-11 16:19:29,317 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,318 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,326 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,326 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:48, output treesize:37 [2018-04-11 16:19:29,390 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 [2018-04-11 16:19:29,390 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,405 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,405 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,406 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,406 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 13 [2018-04-11 16:19:29,407 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,419 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. [2018-04-11 16:19:29,419 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:71, output treesize:63 [2018-04-11 16:19:29,459 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,461 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 45 [2018-04-11 16:19:29,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:19:29,464 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,484 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 32 treesize of output 39 [2018-04-11 16:19:29,487 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 16 treesize of output 15 [2018-04-11 16:19:29,488 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,491 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,501 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. [2018-04-11 16:19:29,501 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:86, output treesize:83 [2018-04-11 16:19:29,587 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,590 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 202 [2018-04-11 16:19:29,594 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 46 treesize of output 45 [2018-04-11 16:19:29,594 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,605 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,619 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 216 treesize of output 208 [2018-04-11 16:19:29,626 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 46 treesize of output 45 [2018-04-11 16:19:29,626 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,636 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:29,648 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:247, output treesize:203 [2018-04-11 16:19:29,853 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,854 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,854 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:29,857 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:29,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 218 [2018-04-11 16:19:29,860 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:29,864 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 156 treesize of output 122 [2018-04-11 16:19:29,865 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:29,888 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:29,888 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 141 treesize of output 107 [2018-04-11 16:19:29,889 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,891 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:29,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 147 treesize of output 127 [2018-04-11 16:19:29,895 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:29,921 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 88 treesize of output 69 [2018-04-11 16:19:29,922 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,923 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 88 treesize of output 69 [2018-04-11 16:19:29,923 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,940 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:29,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 62 [2018-04-11 16:19:29,965 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:29,965 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 45 treesize of output 27 [2018-04-11 16:19:29,965 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,972 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 9 treesize of output 1 [2018-04-11 16:19:29,972 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,977 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 [2018-04-11 16:19:29,978 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,981 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 62 [2018-04-11 16:19:29,985 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:29,986 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 38 treesize of output 26 [2018-04-11 16:19:29,986 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,993 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 7 treesize of output 1 [2018-04-11 16:19:29,993 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:29,998 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 7 treesize of output 1 [2018-04-11 16:19:29,998 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:30,002 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:30,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:30,015 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 5 variables, input treesize:248, output treesize:9 [2018-04-11 16:19:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:30,073 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:30,074 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-11 16:19:30,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 16:19:30,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 16:19:30,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2018-04-11 16:19:30,074 INFO L87 Difference]: Start difference. First operand 235 states and 272 transitions. Second operand 24 states. [2018-04-11 16:19:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:32,272 INFO L93 Difference]: Finished difference Result 308 states and 342 transitions. [2018-04-11 16:19:32,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-11 16:19:32,272 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 67 [2018-04-11 16:19:32,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:32,274 INFO L225 Difference]: With dead ends: 308 [2018-04-11 16:19:32,274 INFO L226 Difference]: Without dead ends: 308 [2018-04-11 16:19:32,274 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=280, Invalid=1790, Unknown=0, NotChecked=0, Total=2070 [2018-04-11 16:19:32,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-04-11 16:19:32,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 243. [2018-04-11 16:19:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-04-11 16:19:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 281 transitions. [2018-04-11 16:19:32,277 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 281 transitions. Word has length 67 [2018-04-11 16:19:32,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:32,277 INFO L459 AbstractCegarLoop]: Abstraction has 243 states and 281 transitions. [2018-04-11 16:19:32,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 16:19:32,277 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 281 transitions. [2018-04-11 16:19:32,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-11 16:19:32,278 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:32,278 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:19:32,278 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:32,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1405885782, now seen corresponding path program 1 times [2018-04-11 16:19:32,278 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:32,278 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:32,279 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:32,279 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:32,279 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:32,288 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:32,293 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:32,293 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:32,293 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:32,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:32,320 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:32,323 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 [2018-04-11 16:19:32,324 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,327 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,327 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:32,351 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 [2018-04-11 16:19:32,351 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,359 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,360 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,360 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 [2018-04-11 16:19:32,360 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,366 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:16 [2018-04-11 16:19:32,388 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 13 treesize of output 10 [2018-04-11 16:19:32,389 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 10 treesize of output 9 [2018-04-11 16:19:32,390 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,391 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,400 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,400 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:33 [2018-04-11 16:19:32,452 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,452 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,452 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,453 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 13 [2018-04-11 16:19:32,453 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,461 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 16 treesize of output 23 [2018-04-11 16:19:32,461 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,468 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,468 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:40 [2018-04-11 16:19:32,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 19 [2018-04-11 16:19:32,515 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,524 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 33 [2018-04-11 16:19:32,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:19:32,526 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,529 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,534 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. [2018-04-11 16:19:32,535 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:61, output treesize:44 [2018-04-11 16:19:32,585 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,586 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 77 [2018-04-11 16:19:32,591 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 20 treesize of output 19 [2018-04-11 16:19:32,591 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,596 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:32,602 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:86, output treesize:72 [2018-04-11 16:19:32,757 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,758 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:32,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 63 [2018-04-11 16:19:32,760 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 7 treesize of output 1 [2018-04-11 16:19:32,760 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 17 treesize of output 13 [2018-04-11 16:19:32,766 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:32,772 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 1 case distinctions, treesize of input 24 treesize of output 21 [2018-04-11 16:19:32,772 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:32,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:32,780 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-11 16:19:32,780 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:85, output treesize:13 [2018-04-11 16:19:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:32,829 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:32,829 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 16:19:32,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 16:19:32,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 16:19:32,830 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=596, Unknown=0, NotChecked=0, Total=650 [2018-04-11 16:19:32,830 INFO L87 Difference]: Start difference. First operand 243 states and 281 transitions. Second operand 26 states. [2018-04-11 16:19:34,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:34,690 INFO L93 Difference]: Finished difference Result 300 states and 332 transitions. [2018-04-11 16:19:34,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 16:19:34,690 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 69 [2018-04-11 16:19:34,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:34,691 INFO L225 Difference]: With dead ends: 300 [2018-04-11 16:19:34,691 INFO L226 Difference]: Without dead ends: 299 [2018-04-11 16:19:34,692 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=309, Invalid=2343, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 16:19:34,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2018-04-11 16:19:34,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 246. [2018-04-11 16:19:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-04-11 16:19:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 284 transitions. [2018-04-11 16:19:34,696 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 284 transitions. Word has length 69 [2018-04-11 16:19:34,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:34,696 INFO L459 AbstractCegarLoop]: Abstraction has 246 states and 284 transitions. [2018-04-11 16:19:34,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 16:19:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 284 transitions. [2018-04-11 16:19:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 16:19:34,697 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:34,697 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:34,697 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:34,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1266188952, now seen corresponding path program 2 times [2018-04-11 16:19:34,697 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:34,698 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:34,698 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:34,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:34,698 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:34,707 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:34,712 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:34,712 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:34,712 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:34,712 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:34,732 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:34,747 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:34,750 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:34,760 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 [2018-04-11 16:19:34,760 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,777 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 [2018-04-11 16:19:34,777 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,781 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,781 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 16:19:34,807 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 [2018-04-11 16:19:34,808 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 [2018-04-11 16:19:34,809 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,810 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,817 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,818 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2018-04-11 16:19:34,832 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:34,832 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:34,833 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 [2018-04-11 16:19:34,833 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,843 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 12 treesize of output 15 [2018-04-11 16:19:34,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,852 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,852 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:31 [2018-04-11 16:19:34,884 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 13 treesize of output 10 [2018-04-11 16:19:34,886 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 10 treesize of output 9 [2018-04-11 16:19:34,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,901 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:56, output treesize:55 [2018-04-11 16:19:34,962 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:34,964 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-04-11 16:19:34,966 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 16 treesize of output 15 [2018-04-11 16:19:34,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,970 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:34,981 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. [2018-04-11 16:19:34,981 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:74, output treesize:61 [2018-04-11 16:19:35,012 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:35,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-11 16:19:35,016 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 14 treesize of output 13 [2018-04-11 16:19:35,016 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,020 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,032 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. [2018-04-11 16:19:35,032 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:72, output treesize:74 [2018-04-11 16:19:35,056 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:35,057 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:35,057 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 [2018-04-11 16:19:35,057 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,070 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 24 treesize of output 14 [2018-04-11 16:19:35,070 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,079 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. [2018-04-11 16:19:35,079 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:79, output treesize:53 [2018-04-11 16:19:35,124 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:35,127 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 46 treesize of output 47 [2018-04-11 16:19:35,128 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 10 treesize of output 9 [2018-04-11 16:19:35,128 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,134 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,144 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. [2018-04-11 16:19:35,144 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:59 [2018-04-11 16:19:35,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 42 [2018-04-11 16:19:35,163 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 16 treesize of output 4 [2018-04-11 16:19:35,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,167 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-04-11 16:19:35,167 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:35,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:35,176 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:35,176 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:71, output treesize:32 [2018-04-11 16:19:35,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2018-04-11 16:19:35,237 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 35 treesize of output 34 [2018-04-11 16:19:35,237 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,252 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:35,255 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 2 case distinctions, treesize of input 24 treesize of output 29 [2018-04-11 16:19:35,256 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:35,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:35,277 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:35,277 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:43, output treesize:68 [2018-04-11 16:19:35,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-04-11 16:19:35,357 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:35,357 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 7 [2018-04-11 16:19:35,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,360 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 5 treesize of output 1 [2018-04-11 16:19:35,360 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,361 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:35,365 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:38, output treesize:3 [2018-04-11 16:19:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-04-11 16:19:35,391 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:35,391 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-11 16:19:35,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 16:19:35,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 16:19:35,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2018-04-11 16:19:35,391 INFO L87 Difference]: Start difference. First operand 246 states and 284 transitions. Second operand 20 states. [2018-04-11 16:19:36,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:36,627 INFO L93 Difference]: Finished difference Result 360 states and 407 transitions. [2018-04-11 16:19:36,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 16:19:36,627 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 72 [2018-04-11 16:19:36,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:36,628 INFO L225 Difference]: With dead ends: 360 [2018-04-11 16:19:36,628 INFO L226 Difference]: Without dead ends: 360 [2018-04-11 16:19:36,628 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=254, Invalid=1228, Unknown=0, NotChecked=0, Total=1482 [2018-04-11 16:19:36,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2018-04-11 16:19:36,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 263. [2018-04-11 16:19:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-04-11 16:19:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 303 transitions. [2018-04-11 16:19:36,632 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 303 transitions. Word has length 72 [2018-04-11 16:19:36,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:36,633 INFO L459 AbstractCegarLoop]: Abstraction has 263 states and 303 transitions. [2018-04-11 16:19:36,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 16:19:36,633 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 303 transitions. [2018-04-11 16:19:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 16:19:36,634 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:36,634 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:36,634 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:36,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1696340008, now seen corresponding path program 3 times [2018-04-11 16:19:36,634 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:36,634 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:36,635 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:36,635 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:36,635 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:36,644 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:36,646 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:36,646 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:36,646 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:36,647 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:19:36,675 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-11 16:19:36,675 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:36,678 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:36,729 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 [2018-04-11 16:19:36,731 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 [2018-04-11 16:19:36,731 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,733 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,740 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-11 16:19:36,754 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:36,755 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:36,755 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 [2018-04-11 16:19:36,756 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,763 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,763 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-11 16:19:36,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:36,793 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 10 treesize of output 9 [2018-04-11 16:19:36,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,795 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,806 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:35 [2018-04-11 16:19:36,867 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:36,870 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-04-11 16:19:36,872 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 16 treesize of output 15 [2018-04-11 16:19:36,872 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,877 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,889 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. [2018-04-11 16:19:36,889 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:41 [2018-04-11 16:19:36,906 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:36,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-11 16:19:36,912 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 14 treesize of output 13 [2018-04-11 16:19:36,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,917 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,927 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. [2018-04-11 16:19:36,927 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2018-04-11 16:19:36,944 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:36,945 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:36,945 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:36,946 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:36,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 13 [2018-04-11 16:19:36,946 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:36,957 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. [2018-04-11 16:19:36,957 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:64, output treesize:57 [2018-04-11 16:19:37,001 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:37,004 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 46 treesize of output 47 [2018-04-11 16:19:37,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:37,006 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,011 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,022 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. [2018-04-11 16:19:37,022 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:69 [2018-04-11 16:19:37,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 54 [2018-04-11 16:19:37,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 32 treesize of output 20 [2018-04-11 16:19:37,045 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:37,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 9 [2018-04-11 16:19:37,052 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,057 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:37,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:37,065 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:93, output treesize:36 [2018-04-11 16:19:37,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-04-11 16:19:37,130 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 [2018-04-11 16:19:37,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,136 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:37,145 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:43 [2018-04-11 16:19:37,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2018-04-11 16:19:37,194 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 5 treesize of output 1 [2018-04-11 16:19:37,194 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,201 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 5 treesize of output 1 [2018-04-11 16:19:37,201 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,205 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:37,205 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 7 [2018-04-11 16:19:37,205 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,207 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:37,214 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-04-11 16:19:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-04-11 16:19:37,254 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:37,255 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 16:19:37,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 16:19:37,255 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 16:19:37,255 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2018-04-11 16:19:37,255 INFO L87 Difference]: Start difference. First operand 263 states and 303 transitions. Second operand 21 states. [2018-04-11 16:19:38,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:38,402 INFO L93 Difference]: Finished difference Result 373 states and 417 transitions. [2018-04-11 16:19:38,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-11 16:19:38,403 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2018-04-11 16:19:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:38,404 INFO L225 Difference]: With dead ends: 373 [2018-04-11 16:19:38,404 INFO L226 Difference]: Without dead ends: 373 [2018-04-11 16:19:38,404 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=295, Invalid=1427, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 16:19:38,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2018-04-11 16:19:38,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 263. [2018-04-11 16:19:38,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-04-11 16:19:38,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 302 transitions. [2018-04-11 16:19:38,407 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 302 transitions. Word has length 72 [2018-04-11 16:19:38,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:38,408 INFO L459 AbstractCegarLoop]: Abstraction has 263 states and 302 transitions. [2018-04-11 16:19:38,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 16:19:38,408 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 302 transitions. [2018-04-11 16:19:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 16:19:38,408 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:38,409 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:38,409 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:38,409 INFO L82 PathProgramCache]: Analyzing trace with hash -95854792, now seen corresponding path program 1 times [2018-04-11 16:19:38,409 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:38,409 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:38,409 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:38,410 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:38,410 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:38,419 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:38,422 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:38,422 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:38,422 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:38,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:38,448 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:38,461 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 [2018-04-11 16:19:38,462 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,465 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:38,484 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 [2018-04-11 16:19:38,485 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 [2018-04-11 16:19:38,485 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,486 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,490 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2018-04-11 16:19:38,499 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:38,500 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:38,500 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 [2018-04-11 16:19:38,500 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,506 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 12 treesize of output 15 [2018-04-11 16:19:38,507 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,512 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,512 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:31 [2018-04-11 16:19:38,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:19:38,532 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:38,542 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 10 treesize of output 9 [2018-04-11 16:19:38,542 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,543 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,550 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. [2018-04-11 16:19:38,550 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:56, output treesize:35 [2018-04-11 16:19:38,585 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:38,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-04-11 16:19:38,588 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 16 treesize of output 15 [2018-04-11 16:19:38,588 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,591 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,600 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. [2018-04-11 16:19:38,600 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:41 [2018-04-11 16:19:38,611 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:38,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-11 16:19:38,614 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 14 treesize of output 13 [2018-04-11 16:19:38,614 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,617 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,624 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. [2018-04-11 16:19:38,624 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:54 [2018-04-11 16:19:38,637 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:38,638 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:38,638 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 [2018-04-11 16:19:38,638 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,645 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. [2018-04-11 16:19:38,645 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:53 [2018-04-11 16:19:38,673 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:38,675 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 46 treesize of output 47 [2018-04-11 16:19:38,676 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 10 treesize of output 9 [2018-04-11 16:19:38,676 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,681 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,688 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. [2018-04-11 16:19:38,688 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:59 [2018-04-11 16:19:38,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 42 [2018-04-11 16:19:38,707 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-04-11 16:19:38,707 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:38,711 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 16 treesize of output 4 [2018-04-11 16:19:38,711 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,714 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:38,720 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:38,720 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:71, output treesize:32 [2018-04-11 16:19:38,809 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 46 [2018-04-11 16:19:38,812 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:38,816 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 2 case distinctions, treesize of input 32 treesize of output 37 [2018-04-11 16:19:38,817 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:38,836 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 23 treesize of output 22 [2018-04-11 16:19:38,837 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,845 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:38,857 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:38,857 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:43, output treesize:68 [2018-04-11 16:19:38,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2018-04-11 16:19:38,935 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:38,935 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 7 [2018-04-11 16:19:38,935 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,939 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 5 treesize of output 1 [2018-04-11 16:19:38,939 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,940 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,944 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:38,944 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:38, output treesize:3 [2018-04-11 16:19:38,967 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-04-11 16:19:38,967 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:38,967 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-11 16:19:38,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 16:19:38,968 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 16:19:38,968 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2018-04-11 16:19:38,968 INFO L87 Difference]: Start difference. First operand 263 states and 302 transitions. Second operand 21 states. [2018-04-11 16:19:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:40,111 INFO L93 Difference]: Finished difference Result 364 states and 408 transitions. [2018-04-11 16:19:40,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 16:19:40,111 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2018-04-11 16:19:40,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:40,112 INFO L225 Difference]: With dead ends: 364 [2018-04-11 16:19:40,112 INFO L226 Difference]: Without dead ends: 364 [2018-04-11 16:19:40,112 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=1353, Unknown=0, NotChecked=0, Total=1640 [2018-04-11 16:19:40,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-04-11 16:19:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 246. [2018-04-11 16:19:40,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-04-11 16:19:40,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 282 transitions. [2018-04-11 16:19:40,115 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 282 transitions. Word has length 72 [2018-04-11 16:19:40,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:40,115 INFO L459 AbstractCegarLoop]: Abstraction has 246 states and 282 transitions. [2018-04-11 16:19:40,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 16:19:40,115 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 282 transitions. [2018-04-11 16:19:40,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-11 16:19:40,115 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:40,115 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:40,115 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:40,115 INFO L82 PathProgramCache]: Analyzing trace with hash -141689490, now seen corresponding path program 3 times [2018-04-11 16:19:40,115 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:40,116 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:40,116 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:40,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:40,116 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:40,124 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:40,128 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:40,128 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:40,128 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:40,128 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:19:40,145 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 16:19:40,145 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:40,147 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:40,149 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 [2018-04-11 16:19:40,149 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,151 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,151 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:19:40,168 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 [2018-04-11 16:19:40,169 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 [2018-04-11 16:19:40,169 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,175 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,176 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-11 16:19:40,186 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,186 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,187 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 [2018-04-11 16:19:40,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,192 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-11 16:19:40,213 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 13 treesize of output 10 [2018-04-11 16:19:40,214 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 10 treesize of output 9 [2018-04-11 16:19:40,214 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,215 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,223 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,223 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:35 [2018-04-11 16:19:40,260 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,262 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-04-11 16:19:40,263 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 16 treesize of output 15 [2018-04-11 16:19:40,263 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,266 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,273 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. [2018-04-11 16:19:40,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:54, output treesize:41 [2018-04-11 16:19:40,287 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-11 16:19:40,290 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 14 treesize of output 13 [2018-04-11 16:19:40,290 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,296 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,305 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. [2018-04-11 16:19:40,305 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2018-04-11 16:19:40,321 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,321 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,322 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,322 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,322 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 46 [2018-04-11 16:19:40,322 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,335 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. [2018-04-11 16:19:40,335 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:78 [2018-04-11 16:19:40,377 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 57 treesize of output 58 [2018-04-11 16:19:40,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:40,380 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,386 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,399 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. [2018-04-11 16:19:40,399 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:91, output treesize:96 [2018-04-11 16:19:40,470 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,471 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 67 [2018-04-11 16:19:40,476 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 22 treesize of output 21 [2018-04-11 16:19:40,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,482 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,498 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. [2018-04-11 16:19:40,498 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:144, output treesize:126 [2018-04-11 16:19:40,521 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,522 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 65 [2018-04-11 16:19:40,532 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 20 treesize of output 19 [2018-04-11 16:19:40,532 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,560 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,560 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:137, output treesize:145 [2018-04-11 16:19:40,585 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,586 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,587 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,587 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 86 [2018-04-11 16:19:40,588 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,601 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. [2018-04-11 16:19:40,601 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:150, output treesize:142 [2018-04-11 16:19:40,647 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,648 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:40,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 135 treesize of output 125 [2018-04-11 16:19:40,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:40,659 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,670 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,685 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. [2018-04-11 16:19:40,685 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:155, output treesize:160 [2018-04-11 16:19:40,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 104 [2018-04-11 16:19:40,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 44 treesize of output 28 [2018-04-11 16:19:40,718 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 36 treesize of output 17 [2018-04-11 16:19:40,727 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 36 treesize of output 20 [2018-04-11 16:19:40,736 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,742 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,752 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,752 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:202, output treesize:55 [2018-04-11 16:19:40,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 54 [2018-04-11 16:19:40,899 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 [2018-04-11 16:19:40,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,906 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:40,918 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:40,918 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:66, output treesize:62 [2018-04-11 16:19:40,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 50 [2018-04-11 16:19:40,993 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 5 treesize of output 1 [2018-04-11 16:19:40,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,001 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 5 treesize of output 1 [2018-04-11 16:19:41,001 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,005 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:41,005 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 7 [2018-04-11 16:19:41,005 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,009 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 5 treesize of output 1 [2018-04-11 16:19:41,009 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,010 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:41,018 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 10 variables, input treesize:72, output treesize:3 [2018-04-11 16:19:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:41,071 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:41,072 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 16:19:41,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 16:19:41,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 16:19:41,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2018-04-11 16:19:41,072 INFO L87 Difference]: Start difference. First operand 246 states and 282 transitions. Second operand 26 states. [2018-04-11 16:19:43,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:43,218 INFO L93 Difference]: Finished difference Result 371 states and 414 transitions. [2018-04-11 16:19:43,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 16:19:43,218 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 73 [2018-04-11 16:19:43,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:43,219 INFO L225 Difference]: With dead ends: 371 [2018-04-11 16:19:43,219 INFO L226 Difference]: Without dead ends: 369 [2018-04-11 16:19:43,219 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=339, Invalid=2313, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 16:19:43,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-04-11 16:19:43,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 269. [2018-04-11 16:19:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-04-11 16:19:43,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 309 transitions. [2018-04-11 16:19:43,223 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 309 transitions. Word has length 73 [2018-04-11 16:19:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:43,223 INFO L459 AbstractCegarLoop]: Abstraction has 269 states and 309 transitions. [2018-04-11 16:19:43,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 16:19:43,223 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 309 transitions. [2018-04-11 16:19:43,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-11 16:19:43,224 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:43,224 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:43,224 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:43,224 INFO L82 PathProgramCache]: Analyzing trace with hash 438939448, now seen corresponding path program 5 times [2018-04-11 16:19:43,224 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:43,224 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:43,225 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:43,225 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:43,225 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:43,236 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:43,239 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:43,239 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:43,239 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:43,239 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-11 16:19:43,288 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-04-11 16:19:43,289 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:43,293 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:43,299 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 [2018-04-11 16:19:43,300 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,301 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,301 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:19:43,318 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,319 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,320 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 [2018-04-11 16:19:43,320 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,324 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-04-11 16:19:43,341 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 13 treesize of output 10 [2018-04-11 16:19:43,343 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 10 treesize of output 9 [2018-04-11 16:19:43,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,351 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,351 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-04-11 16:19:43,402 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,403 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,404 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,405 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,405 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 46 [2018-04-11 16:19:43,406 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,417 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,417 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:49 [2018-04-11 16:19:43,463 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 44 treesize of output 45 [2018-04-11 16:19:43,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:43,468 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,474 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,485 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,485 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:61 [2018-04-11 16:19:43,595 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,595 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,596 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,597 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 138 [2018-04-11 16:19:43,597 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,608 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. [2018-04-11 16:19:43,609 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:108, output treesize:132 [2018-04-11 16:19:43,658 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,659 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:43,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 131 treesize of output 121 [2018-04-11 16:19:43,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:43,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,675 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,688 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. [2018-04-11 16:19:43,688 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:145, output treesize:144 [2018-04-11 16:19:43,775 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 149 [2018-04-11 16:19:43,776 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 27 [2018-04-11 16:19:43,776 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,787 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,800 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:43,800 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:238, output treesize:216 [2018-04-11 16:19:43,864 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 116 [2018-04-11 16:19:43,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 42 treesize of output 26 [2018-04-11 16:19:43,866 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:43,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 38 treesize of output 22 [2018-04-11 16:19:43,877 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:43,887 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 7 treesize of output 1 [2018-04-11 16:19:43,887 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 41 treesize of output 18 [2018-04-11 16:19:43,897 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:43,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:43,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:43,911 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:225, output treesize:45 [2018-04-11 16:19:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:44,011 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:44,011 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-11 16:19:44,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 16:19:44,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 16:19:44,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2018-04-11 16:19:44,012 INFO L87 Difference]: Start difference. First operand 269 states and 309 transitions. Second operand 25 states. [2018-04-11 16:19:45,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:45,489 INFO L93 Difference]: Finished difference Result 356 states and 405 transitions. [2018-04-11 16:19:45,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-11 16:19:45,489 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 73 [2018-04-11 16:19:45,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:45,490 INFO L225 Difference]: With dead ends: 356 [2018-04-11 16:19:45,490 INFO L226 Difference]: Without dead ends: 356 [2018-04-11 16:19:45,491 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=325, Invalid=2027, Unknown=0, NotChecked=0, Total=2352 [2018-04-11 16:19:45,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-04-11 16:19:45,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 301. [2018-04-11 16:19:45,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2018-04-11 16:19:45,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 347 transitions. [2018-04-11 16:19:45,495 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 347 transitions. Word has length 73 [2018-04-11 16:19:45,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:45,495 INFO L459 AbstractCegarLoop]: Abstraction has 301 states and 347 transitions. [2018-04-11 16:19:45,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 16:19:45,495 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 347 transitions. [2018-04-11 16:19:45,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-11 16:19:45,496 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:45,496 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:45,496 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:45,496 INFO L82 PathProgramCache]: Analyzing trace with hash 438939449, now seen corresponding path program 4 times [2018-04-11 16:19:45,496 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:45,496 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:45,497 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:45,497 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:45,497 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:45,510 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:45,514 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:45,514 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:45,515 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:45,515 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 16:19:45,560 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 16:19:45,560 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:45,565 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:45,591 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,592 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,593 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 [2018-04-11 16:19:45,593 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,614 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-04-11 16:19:45,637 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:45,639 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 10 treesize of output 9 [2018-04-11 16:19:45,639 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,641 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:45,654 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 10 treesize of output 9 [2018-04-11 16:19:45,655 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,656 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,665 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:45, output treesize:34 [2018-04-11 16:19:45,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,738 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,739 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,740 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,740 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 22 treesize of output 49 [2018-04-11 16:19:45,741 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,754 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,754 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:70 [2018-04-11 16:19:45,799 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,802 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 56 [2018-04-11 16:19:45,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:19:45,804 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,810 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,827 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 32 treesize of output 39 [2018-04-11 16:19:45,831 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 16 treesize of output 15 [2018-04-11 16:19:45,831 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,837 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,851 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,851 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:108, output treesize:79 [2018-04-11 16:19:45,937 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,938 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 26 treesize of output 35 [2018-04-11 16:19:45,938 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,953 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,953 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,954 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,955 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,955 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:45,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 97 [2018-04-11 16:19:45,956 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,967 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:45,967 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:153, output treesize:144 [2018-04-11 16:19:46,021 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,022 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,023 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,026 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 150 [2018-04-11 16:19:46,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:46,030 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,042 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,059 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,062 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 107 treesize of output 108 [2018-04-11 16:19:46,064 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 10 treesize of output 9 [2018-04-11 16:19:46,064 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,071 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,090 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,090 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:170, output treesize:150 [2018-04-11 16:19:46,186 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,191 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 203 [2018-04-11 16:19:46,199 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 34 treesize of output 33 [2018-04-11 16:19:46,199 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 286 [2018-04-11 16:19:46,243 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 34 treesize of output 33 [2018-04-11 16:19:46,243 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,256 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:46,272 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:341, output treesize:285 [2018-04-11 16:19:46,354 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,355 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:46,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 136 [2018-04-11 16:19:46,360 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 7 treesize of output 1 [2018-04-11 16:19:46,361 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 43 treesize of output 19 [2018-04-11 16:19:46,373 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 41 treesize of output 25 [2018-04-11 16:19:46,381 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:46,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 31 treesize of output 20 [2018-04-11 16:19:46,389 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,395 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:46,403 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2018-04-11 16:19:46,404 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 20 treesize of output 11 [2018-04-11 16:19:46,404 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,409 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 7 treesize of output 1 [2018-04-11 16:19:46,409 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,411 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:46,416 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:46,416 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:250, output treesize:20 [2018-04-11 16:19:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:46,500 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:46,500 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-11 16:19:46,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 16:19:46,500 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 16:19:46,500 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2018-04-11 16:19:46,501 INFO L87 Difference]: Start difference. First operand 301 states and 347 transitions. Second operand 26 states. [2018-04-11 16:19:48,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:48,534 INFO L93 Difference]: Finished difference Result 398 states and 447 transitions. [2018-04-11 16:19:48,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 16:19:48,534 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 73 [2018-04-11 16:19:48,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:48,535 INFO L225 Difference]: With dead ends: 398 [2018-04-11 16:19:48,535 INFO L226 Difference]: Without dead ends: 398 [2018-04-11 16:19:48,536 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=385, Invalid=2477, Unknown=0, NotChecked=0, Total=2862 [2018-04-11 16:19:48,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2018-04-11 16:19:48,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 299. [2018-04-11 16:19:48,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-04-11 16:19:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 344 transitions. [2018-04-11 16:19:48,539 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 344 transitions. Word has length 73 [2018-04-11 16:19:48,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:48,539 INFO L459 AbstractCegarLoop]: Abstraction has 299 states and 344 transitions. [2018-04-11 16:19:48,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 16:19:48,539 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 344 transitions. [2018-04-11 16:19:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 16:19:48,539 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:48,539 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-11 16:19:48,539 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:48,539 INFO L82 PathProgramCache]: Analyzing trace with hash 700880312, now seen corresponding path program 3 times [2018-04-11 16:19:48,540 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:48,540 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:48,540 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:48,540 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:48,540 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:48,548 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:48,553 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:48,553 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:48,554 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:48,554 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:19:48,582 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 16:19:48,582 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:48,586 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:48,591 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 [2018-04-11 16:19:48,592 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,593 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:19:48,620 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,621 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,621 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 17 treesize of output 21 [2018-04-11 16:19:48,622 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,632 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,632 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:28 [2018-04-11 16:19:48,664 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 13 treesize of output 10 [2018-04-11 16:19:48,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:48,666 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,668 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,678 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,678 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:46 [2018-04-11 16:19:48,778 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,779 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,779 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,780 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-04-11 16:19:48,780 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,792 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. [2018-04-11 16:19:48,792 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:63, output treesize:71 [2018-04-11 16:19:48,825 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,828 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 64 treesize of output 65 [2018-04-11 16:19:48,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:48,829 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,836 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,849 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. [2018-04-11 16:19:48,849 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:84, output treesize:89 [2018-04-11 16:19:48,916 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,916 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,916 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,917 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 79 [2018-04-11 16:19:48,917 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,926 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. [2018-04-11 16:19:48,926 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:118, output treesize:110 [2018-04-11 16:19:48,957 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,958 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:48,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 109 [2018-04-11 16:19:48,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:19:48,963 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,971 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:48,982 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. [2018-04-11 16:19:48,982 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:123, output treesize:116 [2018-04-11 16:19:49,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 126 [2018-04-11 16:19:49,053 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 27 [2018-04-11 16:19:49,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,061 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:49,071 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:198, output treesize:176 [2018-04-11 16:19:49,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 104 [2018-04-11 16:19:49,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 33 treesize of output 21 [2018-04-11 16:19:49,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 21 treesize of output 13 [2018-04-11 16:19:49,145 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,149 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 7 treesize of output 1 [2018-04-11 16:19:49,149 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:49,154 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 1 case distinctions, treesize of input 24 treesize of output 21 [2018-04-11 16:19:49,155 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:49,159 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:49,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:49,172 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:185, output treesize:16 [2018-04-11 16:19:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:49,252 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:49,252 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-11 16:19:49,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 16:19:49,252 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 16:19:49,253 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2018-04-11 16:19:49,253 INFO L87 Difference]: Start difference. First operand 299 states and 344 transitions. Second operand 25 states. [2018-04-11 16:19:51,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:51,169 INFO L93 Difference]: Finished difference Result 390 states and 441 transitions. [2018-04-11 16:19:51,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-11 16:19:51,169 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 75 [2018-04-11 16:19:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:51,170 INFO L225 Difference]: With dead ends: 390 [2018-04-11 16:19:51,170 INFO L226 Difference]: Without dead ends: 389 [2018-04-11 16:19:51,171 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=310, Invalid=2042, Unknown=0, NotChecked=0, Total=2352 [2018-04-11 16:19:51,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-04-11 16:19:51,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 323. [2018-04-11 16:19:51,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-04-11 16:19:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 379 transitions. [2018-04-11 16:19:51,174 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 379 transitions. Word has length 75 [2018-04-11 16:19:51,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:51,174 INFO L459 AbstractCegarLoop]: Abstraction has 323 states and 379 transitions. [2018-04-11 16:19:51,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 16:19:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 379 transitions. [2018-04-11 16:19:51,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-11 16:19:51,174 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:51,174 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:51,174 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:51,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1061029122, now seen corresponding path program 3 times [2018-04-11 16:19:51,175 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:51,175 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:51,175 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:51,175 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:51,175 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:51,184 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:51,189 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:51,189 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:51,189 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:51,189 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:19:51,212 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 16:19:51,212 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:51,214 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:51,231 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,232 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,232 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:51,232 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,238 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,238 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-04-11 16:19:51,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:51,263 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 10 treesize of output 9 [2018-04-11 16:19:51,263 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:51,276 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 10 treesize of output 9 [2018-04-11 16:19:51,277 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,278 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,286 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:50, output treesize:45 [2018-04-11 16:19:51,328 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 [2018-04-11 16:19:51,328 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,338 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,339 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,339 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 22 treesize of output 32 [2018-04-11 16:19:51,340 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,348 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,348 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:63 [2018-04-11 16:19:51,381 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,383 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2018-04-11 16:19:51,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-11 16:19:51,385 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,390 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,401 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,403 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 32 treesize of output 39 [2018-04-11 16:19:51,404 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 16 treesize of output 15 [2018-04-11 16:19:51,404 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,408 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,417 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,417 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:86, output treesize:83 [2018-04-11 16:19:51,479 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 26 [2018-04-11 16:19:51,480 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 26 treesize of output 43 [2018-04-11 16:19:51,480 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,482 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,493 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,493 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:163, output treesize:192 [2018-04-11 16:19:51,523 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 273 [2018-04-11 16:19:51,531 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 46 treesize of output 45 [2018-04-11 16:19:51,531 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,558 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,561 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 250 treesize of output 223 [2018-04-11 16:19:51,565 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 46 treesize of output 45 [2018-04-11 16:19:51,565 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,577 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,589 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:284, output treesize:240 [2018-04-11 16:19:51,644 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 161 [2018-04-11 16:19:51,648 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 13 treesize of output 1 [2018-04-11 16:19:51,648 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,658 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 125 treesize of output 102 [2018-04-11 16:19:51,658 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,666 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 52 treesize of output 35 [2018-04-11 16:19:51,666 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,672 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,686 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. [2018-04-11 16:19:51,686 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:207, output treesize:92 [2018-04-11 16:19:51,745 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,746 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:51,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 56 [2018-04-11 16:19:51,750 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 25 [2018-04-11 16:19:51,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,755 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 28 treesize of output 17 [2018-04-11 16:19:51,755 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,758 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,760 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:51,760 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:83, output treesize:13 [2018-04-11 16:19:51,803 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 [2018-04-11 16:19:51,806 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 1 case distinctions, treesize of input 11 treesize of output 8 [2018-04-11 16:19:51,806 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:51,808 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:51,812 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:51,812 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:26 [2018-04-11 16:19:51,868 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:51,869 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:51,869 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 16:19:51,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 16:19:51,869 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 16:19:51,869 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2018-04-11 16:19:51,869 INFO L87 Difference]: Start difference. First operand 323 states and 379 transitions. Second operand 26 states. [2018-04-11 16:19:53,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:53,556 INFO L93 Difference]: Finished difference Result 377 states and 424 transitions. [2018-04-11 16:19:53,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-11 16:19:53,556 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 76 [2018-04-11 16:19:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:53,557 INFO L225 Difference]: With dead ends: 377 [2018-04-11 16:19:53,557 INFO L226 Difference]: Without dead ends: 374 [2018-04-11 16:19:53,558 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=332, Invalid=2218, Unknown=0, NotChecked=0, Total=2550 [2018-04-11 16:19:53,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2018-04-11 16:19:53,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 321. [2018-04-11 16:19:53,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2018-04-11 16:19:53,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 376 transitions. [2018-04-11 16:19:53,560 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 376 transitions. Word has length 76 [2018-04-11 16:19:53,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:53,560 INFO L459 AbstractCegarLoop]: Abstraction has 321 states and 376 transitions. [2018-04-11 16:19:53,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 16:19:53,560 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 376 transitions. [2018-04-11 16:19:53,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-11 16:19:53,561 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:53,561 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:53,561 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:53,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1641658060, now seen corresponding path program 6 times [2018-04-11 16:19:53,561 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:53,561 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:53,561 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:53,561 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:53,561 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:53,568 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:53,572 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:53,572 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:53,572 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:53,573 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-11 16:19:53,597 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-04-11 16:19:53,597 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:53,600 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:53,635 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 [2018-04-11 16:19:53,635 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,639 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 [2018-04-11 16:19:53,640 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,652 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,652 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 16:19:53,707 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,708 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,708 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:53,709 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,722 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 12 treesize of output 15 [2018-04-11 16:19:53,723 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,734 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-04-11 16:19:53,773 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 13 treesize of output 10 [2018-04-11 16:19:53,774 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 10 treesize of output 9 [2018-04-11 16:19:53,775 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,776 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,786 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 13 treesize of output 10 [2018-04-11 16:19:53,788 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 10 treesize of output 9 [2018-04-11 16:19:53,788 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,789 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,797 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,798 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:60, output treesize:61 [2018-04-11 16:19:53,853 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,854 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,854 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 25 [2018-04-11 16:19:53,855 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,868 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 46 [2018-04-11 16:19:53,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,880 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. [2018-04-11 16:19:53,880 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:90, output treesize:82 [2018-04-11 16:19:53,915 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 5 treesize of output 1 [2018-04-11 16:19:53,915 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,931 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,933 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,933 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 54 treesize of output 66 [2018-04-11 16:19:53,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:19:53,935 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,941 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,955 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:53,957 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 32 treesize of output 39 [2018-04-11 16:19:53,959 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 16 treesize of output 15 [2018-04-11 16:19:53,959 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,963 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:53,974 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:53,974 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:110, output treesize:102 [2018-04-11 16:19:54,048 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 26 [2018-04-11 16:19:54,050 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 26 treesize of output 43 [2018-04-11 16:19:54,050 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,067 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. [2018-04-11 16:19:54,067 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:182, output treesize:211 [2018-04-11 16:19:54,097 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,101 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 283 treesize of output 250 [2018-04-11 16:19:54,105 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 46 treesize of output 45 [2018-04-11 16:19:54,105 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,118 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,135 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 259 treesize of output 251 [2018-04-11 16:19:54,142 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 46 treesize of output 45 [2018-04-11 16:19:54,142 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,153 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:54,168 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:303, output treesize:259 [2018-04-11 16:19:54,385 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 201 [2018-04-11 16:19:54,389 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 91 treesize of output 52 [2018-04-11 16:19:54,389 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,400 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 5 treesize of output 1 [2018-04-11 16:19:54,400 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,407 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:54,408 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 108 treesize of output 80 [2018-04-11 16:19:54,408 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,413 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,427 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:54,427 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:294, output treesize:121 [2018-04-11 16:19:54,557 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,558 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,558 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,559 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:54,559 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 107 [2018-04-11 16:19:54,565 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:54,569 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 39 [2018-04-11 16:19:54,569 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:54,584 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:54,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 45 [2018-04-11 16:19:54,588 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:54,589 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:54,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-04-11 16:19:54,590 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,605 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:54,623 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:54,623 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:130, output treesize:97 [2018-04-11 16:19:54,748 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,748 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:54,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-04-11 16:19:54,752 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 15 [2018-04-11 16:19:54,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:54,758 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 1 case distinctions, treesize of input 11 treesize of output 8 [2018-04-11 16:19:54,758 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:54,761 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:54,779 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-11 16:19:54,779 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:58, output treesize:80 [2018-04-11 16:19:54,905 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:19:54,905 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:54,905 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-11 16:19:54,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 16:19:54,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 16:19:54,906 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2018-04-11 16:19:54,906 INFO L87 Difference]: Start difference. First operand 321 states and 376 transitions. Second operand 31 states. [2018-04-11 16:19:57,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:57,819 INFO L93 Difference]: Finished difference Result 394 states and 445 transitions. [2018-04-11 16:19:57,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-11 16:19:57,854 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 76 [2018-04-11 16:19:57,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:57,855 INFO L225 Difference]: With dead ends: 394 [2018-04-11 16:19:57,855 INFO L226 Difference]: Without dead ends: 389 [2018-04-11 16:19:57,855 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=418, Invalid=3364, Unknown=0, NotChecked=0, Total=3782 [2018-04-11 16:19:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-04-11 16:19:57,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 344. [2018-04-11 16:19:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2018-04-11 16:19:57,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 402 transitions. [2018-04-11 16:19:57,859 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 402 transitions. Word has length 76 [2018-04-11 16:19:57,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:57,860 INFO L459 AbstractCegarLoop]: Abstraction has 344 states and 402 transitions. [2018-04-11 16:19:57,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 16:19:57,860 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 402 transitions. [2018-04-11 16:19:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-11 16:19:57,861 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:57,861 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:57,861 INFO L408 AbstractCegarLoop]: === Iteration 41 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:57,861 INFO L82 PathProgramCache]: Analyzing trace with hash 203635052, now seen corresponding path program 1 times [2018-04-11 16:19:57,861 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:57,861 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:57,862 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:57,862 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:19:57,862 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:57,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:57,875 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:57,875 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:57,875 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:57,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:57,900 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:57,933 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 [2018-04-11 16:19:57,935 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 [2018-04-11 16:19:57,935 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,936 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,943 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-11 16:19:57,953 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:57,954 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:57,954 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-04-11 16:19:57,954 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,960 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-11 16:19:57,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:57,984 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 10 treesize of output 9 [2018-04-11 16:19:57,984 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,985 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:57,992 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:30 [2018-04-11 16:19:58,006 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 20 treesize of output 16 [2018-04-11 16:19:58,007 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 16 treesize of output 4 [2018-04-11 16:19:58,007 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,008 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,012 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. [2018-04-11 16:19:58,013 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:21 [2018-04-11 16:19:58,046 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-04-11 16:19:58,047 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 10 treesize of output 9 [2018-04-11 16:19:58,048 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,057 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. [2018-04-11 16:19:58,057 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:21 [2018-04-11 16:19:58,069 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-04-11 16:19:58,070 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 [2018-04-11 16:19:58,070 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,073 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,079 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. [2018-04-11 16:19:58,079 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 16:19:58,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:19:58,126 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 10 treesize of output 9 [2018-04-11 16:19:58,126 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,127 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,136 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. [2018-04-11 16:19:58,136 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:37 [2018-04-11 16:19:58,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 16:19:58,155 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-04-11 16:19:58,155 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,156 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,162 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:58,162 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:46, output treesize:31 [2018-04-11 16:19:58,208 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:58,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 26 treesize of output 64 [2018-04-11 16:19:58,222 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 44 treesize of output 42 [2018-04-11 16:19:58,222 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,262 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:58,265 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 2 case distinctions, treesize of input 24 treesize of output 29 [2018-04-11 16:19:58,265 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:19:58,286 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:58,287 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:58,287 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 24 treesize of output 21 [2018-04-11 16:19:58,287 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,313 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-11 16:19:58,332 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 11 dim-0 vars, and 3 xjuncts. [2018-04-11 16:19:58,332 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:45, output treesize:104 [2018-04-11 16:19:58,456 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:58,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2018-04-11 16:19:58,461 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 15 [2018-04-11 16:19:58,461 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,469 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:58,469 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 7 [2018-04-11 16:19:58,469 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,475 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2018-04-11 16:19:58,491 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 5 treesize of output 1 [2018-04-11 16:19:58,491 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,497 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:19:58,497 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 7 [2018-04-11 16:19:58,497 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,502 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:58,512 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:19:58,512 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:83, output treesize:7 [2018-04-11 16:19:58,537 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 14 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-11 16:19:58,537 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:19:58,537 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 16:19:58,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 16:19:58,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 16:19:58,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2018-04-11 16:19:58,538 INFO L87 Difference]: Start difference. First operand 344 states and 402 transitions. Second operand 22 states. [2018-04-11 16:19:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:19:59,562 INFO L93 Difference]: Finished difference Result 443 states and 504 transitions. [2018-04-11 16:19:59,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 16:19:59,562 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 76 [2018-04-11 16:19:59,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:19:59,563 INFO L225 Difference]: With dead ends: 443 [2018-04-11 16:19:59,563 INFO L226 Difference]: Without dead ends: 441 [2018-04-11 16:19:59,563 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=277, Invalid=1363, Unknown=0, NotChecked=0, Total=1640 [2018-04-11 16:19:59,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2018-04-11 16:19:59,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 363. [2018-04-11 16:19:59,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-04-11 16:19:59,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 423 transitions. [2018-04-11 16:19:59,567 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 423 transitions. Word has length 76 [2018-04-11 16:19:59,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:19:59,567 INFO L459 AbstractCegarLoop]: Abstraction has 363 states and 423 transitions. [2018-04-11 16:19:59,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 16:19:59,567 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 423 transitions. [2018-04-11 16:19:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-11 16:19:59,568 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:19:59,568 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:19:59,568 INFO L408 AbstractCegarLoop]: === Iteration 42 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:19:59,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1707651106, now seen corresponding path program 2 times [2018-04-11 16:19:59,569 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:19:59,569 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:19:59,569 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:59,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:19:59,569 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:19:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:19:59,580 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:19:59,584 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:19:59,585 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:19:59,585 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:19:59,585 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:19:59,621 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:19:59,621 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:19:59,625 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:19:59,638 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 [2018-04-11 16:19:59,639 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,643 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 [2018-04-11 16:19:59,643 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,646 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,646 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-11 16:19:59,675 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,675 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,676 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:19:59,676 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,684 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 12 treesize of output 15 [2018-04-11 16:19:59,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,692 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-11 16:19:59,717 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 13 treesize of output 10 [2018-04-11 16:19:59,719 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 10 treesize of output 9 [2018-04-11 16:19:59,719 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,720 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,732 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 13 treesize of output 10 [2018-04-11 16:19:59,733 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 10 treesize of output 9 [2018-04-11 16:19:59,733 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,734 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,743 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,743 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:64, output treesize:65 [2018-04-11 16:19:59,802 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,803 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,803 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 30 treesize of output 53 [2018-04-11 16:19:59,803 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,820 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,821 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,821 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 22 treesize of output 32 [2018-04-11 16:19:59,822 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,834 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. [2018-04-11 16:19:59,834 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:97, output treesize:89 [2018-04-11 16:19:59,869 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,872 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 32 treesize of output 39 [2018-04-11 16:19:59,873 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 16 treesize of output 15 [2018-04-11 16:19:59,873 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,877 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,894 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,896 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:19:59,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 69 treesize of output 81 [2018-04-11 16:19:59,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:19:59,898 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,905 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,918 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. [2018-04-11 16:19:59,918 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:112, output treesize:109 [2018-04-11 16:19:59,981 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 20 [2018-04-11 16:19:59,983 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 20 treesize of output 31 [2018-04-11 16:19:59,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,984 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:19:59,999 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:19:59,999 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:162, output treesize:179 [2018-04-11 16:20:00,050 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:00,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 196 [2018-04-11 16:20:00,056 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 34 treesize of output 33 [2018-04-11 16:20:00,056 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,067 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,087 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:00,090 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:00,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 174 [2018-04-11 16:20:00,094 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 34 treesize of output 33 [2018-04-11 16:20:00,094 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,106 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:00,124 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:247, output treesize:215 [2018-04-11 16:20:00,228 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:00,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 55 [2018-04-11 16:20:00,228 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:00,246 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:243, output treesize:202 [2018-04-11 16:20:00,462 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:00,463 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:00,464 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:00,464 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:00,464 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:00,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 172 [2018-04-11 16:20:00,470 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:00,474 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 80 [2018-04-11 16:20:00,475 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:00,496 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 17 treesize of output 1 [2018-04-11 16:20:00,496 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,506 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:00,506 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 79 treesize of output 62 [2018-04-11 16:20:00,507 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:00,515 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:00,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2018-04-11 16:20:00,537 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:00,538 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 37 treesize of output 23 [2018-04-11 16:20:00,538 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,547 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:00,547 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 22 treesize of output 14 [2018-04-11 16:20:00,547 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,552 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 5 treesize of output 1 [2018-04-11 16:20:00,552 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,556 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,567 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 7 variables, input treesize:226, output treesize:11 [2018-04-11 16:20:00,649 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 [2018-04-11 16:20:00,650 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:00,651 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 7 [2018-04-11 16:20:00,651 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,652 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:00,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2018-04-11 16:20:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 10 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:20:00,720 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:00,720 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 16:20:00,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 16:20:00,720 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 16:20:00,721 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2018-04-11 16:20:00,721 INFO L87 Difference]: Start difference. First operand 363 states and 423 transitions. Second operand 28 states. [2018-04-11 16:20:07,672 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 109 DAG size of output 75 [2018-04-11 16:20:16,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:16,168 INFO L93 Difference]: Finished difference Result 386 states and 436 transitions. [2018-04-11 16:20:16,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 16:20:16,168 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 76 [2018-04-11 16:20:16,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:16,169 INFO L225 Difference]: With dead ends: 386 [2018-04-11 16:20:16,169 INFO L226 Difference]: Without dead ends: 382 [2018-04-11 16:20:16,169 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=339, Invalid=2521, Unknown=2, NotChecked=0, Total=2862 [2018-04-11 16:20:16,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-04-11 16:20:16,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 323. [2018-04-11 16:20:16,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-04-11 16:20:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 370 transitions. [2018-04-11 16:20:16,172 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 370 transitions. Word has length 76 [2018-04-11 16:20:16,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:16,172 INFO L459 AbstractCegarLoop]: Abstraction has 323 states and 370 transitions. [2018-04-11 16:20:16,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 16:20:16,172 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 370 transitions. [2018-04-11 16:20:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 16:20:16,172 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:16,172 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2018-04-11 16:20:16,172 INFO L408 AbstractCegarLoop]: === Iteration 43 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:20:16,173 INFO L82 PathProgramCache]: Analyzing trace with hash 838309622, now seen corresponding path program 1 times [2018-04-11 16:20:16,173 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:16,173 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:16,173 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:16,173 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:16,173 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:16,179 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:16,183 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:16,183 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:16,183 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:16,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:16,216 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:16,219 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 [2018-04-11 16:20:16,219 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,220 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,220 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:20:16,241 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,242 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 12 treesize of output 15 [2018-04-11 16:20:16,242 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,249 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,250 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,250 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 [2018-04-11 16:20:16,251 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 16:20:16,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:16,298 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 10 treesize of output 9 [2018-04-11 16:20:16,298 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,300 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,312 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:46, output treesize:45 [2018-04-11 16:20:16,430 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,431 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,431 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 30 treesize of output 53 [2018-04-11 16:20:16,432 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,447 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,448 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,448 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,448 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,449 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 46 [2018-04-11 16:20:16,449 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,461 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. [2018-04-11 16:20:16,461 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:80 [2018-04-11 16:20:16,498 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 55 treesize of output 56 [2018-04-11 16:20:16,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:20:16,501 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,517 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. [2018-04-11 16:20:16,517 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:98, output treesize:98 [2018-04-11 16:20:16,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2018-04-11 16:20:16,584 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,603 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,603 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,604 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,605 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 135 [2018-04-11 16:20:16,605 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,624 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. [2018-04-11 16:20:16,624 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:154, output treesize:141 [2018-04-11 16:20:16,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:16,689 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 131 treesize of output 121 [2018-04-11 16:20:16,690 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 10 treesize of output 9 [2018-04-11 16:20:16,691 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 22 [2018-04-11 16:20:16,727 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 22 treesize of output 21 [2018-04-11 16:20:16,727 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,728 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:16,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:16,748 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:164, output treesize:135 [2018-04-11 16:20:16,861 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 186 treesize of output 160 [2018-04-11 16:20:16,865 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-11 16:20:16,866 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:17,174 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 125 [2018-04-11 16:20:17,175 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:17,431 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 183 treesize of output 182 [2018-04-11 16:20:17,431 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:17,563 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:17,563 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 164 treesize of output 126 [2018-04-11 16:20:17,564 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:17,683 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:17,801 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-04-11 16:20:17,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 116 treesize of output 123 [2018-04-11 16:20:17,947 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 22 treesize of output 21 [2018-04-11 16:20:17,947 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:17,960 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:17,964 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 114 [2018-04-11 16:20:17,965 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 22 treesize of output 21 [2018-04-11 16:20:17,965 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:17,976 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:17,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 182 treesize of output 190 [2018-04-11 16:20:17,990 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 195 treesize of output 194 [2018-04-11 16:20:17,990 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:18,026 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:18,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 155 treesize of output 162 [2018-04-11 16:20:18,031 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 22 treesize of output 21 [2018-04-11 16:20:18,031 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:18,045 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:18,120 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 19 dim-0 vars, and 4 xjuncts. [2018-04-11 16:20:18,120 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 7 variables, input treesize:206, output treesize:613 [2018-04-11 16:20:18,602 WARN L151 SmtUtils]: Spent 414ms on a formula simplification. DAG size of input: 182 DAG size of output 139 [2018-04-11 16:20:18,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 118 [2018-04-11 16:20:18,772 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 1 case distinctions, treesize of input 19 treesize of output 16 [2018-04-11 16:20:18,772 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:18,791 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 [2018-04-11 16:20:18,791 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:18,792 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 20 treesize of output 6 [2018-04-11 16:20:18,792 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:18,808 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:20:18,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 216 treesize of output 198 [2018-04-11 16:20:18,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 170 treesize of output 164 [2018-04-11 16:20:18,912 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:19,035 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 190 treesize of output 171 [2018-04-11 16:20:19,035 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,152 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 153 [2018-04-11 16:20:19,152 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,270 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 171 treesize of output 166 [2018-04-11 16:20:19,271 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,386 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 166 treesize of output 159 [2018-04-11 16:20:19,387 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,494 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 186 treesize of output 167 [2018-04-11 16:20:19,494 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,599 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 150 treesize of output 143 [2018-04-11 16:20:19,599 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,689 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 1 case distinctions, treesize of input 151 treesize of output 149 [2018-04-11 16:20:19,694 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:19,760 INFO L267 ElimStorePlain]: Start of recursive call 6: 8 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-11 16:20:19,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 128 [2018-04-11 16:20:19,899 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 38 treesize of output 19 [2018-04-11 16:20:19,899 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,915 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 5 treesize of output 1 [2018-04-11 16:20:19,915 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,929 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 7 treesize of output 1 [2018-04-11 16:20:19,930 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:19,943 INFO L267 ElimStorePlain]: Start of recursive call 15: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:20,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 14 dim-0 vars, 3 dim-2 vars, End of recursive call: 23 dim-0 vars, and 6 xjuncts. [2018-04-11 16:20:20,068 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 17 variables, input treesize:499, output treesize:723 [2018-04-11 16:20:20,316 WARN L151 SmtUtils]: Spent 155ms on a formula simplification. DAG size of input: 231 DAG size of output 159 [2018-04-11 16:20:20,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 85 [2018-04-11 16:20:20,508 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:20,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-04-11 16:20:20,509 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:20,522 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 34 treesize of output 18 [2018-04-11 16:20:20,523 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:20,534 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:20,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 86 [2018-04-11 16:20:20,586 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 1 case distinctions, treesize of input 41 treesize of output 30 [2018-04-11 16:20:20,587 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:20,603 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:20,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 114 [2018-04-11 16:20:20,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 87 [2018-04-11 16:20:20,670 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:20,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 75 treesize of output 59 [2018-04-11 16:20:20,721 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:20,722 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 83 treesize of output 67 [2018-04-11 16:20:20,722 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:20,777 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 1 case distinctions, treesize of input 99 treesize of output 88 [2018-04-11 16:20:20,778 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:20,846 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 1 case distinctions, treesize of input 78 treesize of output 67 [2018-04-11 16:20:20,846 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:20,851 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 1 case distinctions, treesize of input 84 treesize of output 73 [2018-04-11 16:20:20,851 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:20,945 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: 7 dim-0 vars, and 6 xjuncts. [2018-04-11 16:20:21,098 INFO L267 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 3 dim-2 vars, End of recursive call: 21 dim-0 vars, and 9 xjuncts. [2018-04-11 16:20:21,098 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 14 variables, input treesize:338, output treesize:451 [2018-04-11 16:20:21,360 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:21,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 51 [2018-04-11 16:20:21,361 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:21,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:21,373 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:51, output treesize:33 [2018-04-11 16:20:21,537 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:20:21,537 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:21,537 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-11 16:20:21,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-11 16:20:21,538 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-11 16:20:21,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=901, Unknown=0, NotChecked=0, Total=992 [2018-04-11 16:20:21,538 INFO L87 Difference]: Start difference. First operand 323 states and 370 transitions. Second operand 32 states. [2018-04-11 16:20:23,505 WARN L148 SmtUtils]: Spent 178ms on a formula simplification that was a NOOP. DAG size: 147 [2018-04-11 16:20:24,065 WARN L151 SmtUtils]: Spent 445ms on a formula simplification. DAG size of input: 221 DAG size of output 146 [2018-04-11 16:20:24,553 WARN L151 SmtUtils]: Spent 340ms on a formula simplification. DAG size of input: 223 DAG size of output 148 [2018-04-11 16:20:25,266 WARN L151 SmtUtils]: Spent 413ms on a formula simplification. DAG size of input: 283 DAG size of output 207 [2018-04-11 16:20:25,793 WARN L151 SmtUtils]: Spent 408ms on a formula simplification. DAG size of input: 274 DAG size of output 198 [2018-04-11 16:20:26,365 WARN L151 SmtUtils]: Spent 383ms on a formula simplification. DAG size of input: 327 DAG size of output 209 [2018-04-11 16:20:26,824 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 327 DAG size of output 210 [2018-04-11 16:20:27,406 WARN L151 SmtUtils]: Spent 395ms on a formula simplification. DAG size of input: 298 DAG size of output 204 [2018-04-11 16:20:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:28,091 INFO L93 Difference]: Finished difference Result 381 states and 422 transitions. [2018-04-11 16:20:28,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-11 16:20:28,091 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 78 [2018-04-11 16:20:28,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:28,092 INFO L225 Difference]: With dead ends: 381 [2018-04-11 16:20:28,092 INFO L226 Difference]: Without dead ends: 381 [2018-04-11 16:20:28,092 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=437, Invalid=3468, Unknown=1, NotChecked=0, Total=3906 [2018-04-11 16:20:28,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-04-11 16:20:28,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 334. [2018-04-11 16:20:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-04-11 16:20:28,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 382 transitions. [2018-04-11 16:20:28,094 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 382 transitions. Word has length 78 [2018-04-11 16:20:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:28,094 INFO L459 AbstractCegarLoop]: Abstraction has 334 states and 382 transitions. [2018-04-11 16:20:28,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-11 16:20:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 382 transitions. [2018-04-11 16:20:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 16:20:28,095 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:28,095 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2018-04-11 16:20:28,095 INFO L408 AbstractCegarLoop]: === Iteration 44 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:20:28,095 INFO L82 PathProgramCache]: Analyzing trace with hash 838309623, now seen corresponding path program 1 times [2018-04-11 16:20:28,095 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:28,095 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:28,096 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:28,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:28,096 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:28,102 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:28,103 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:28,104 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:28,104 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:28,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:28,125 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:28,127 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 [2018-04-11 16:20:28,127 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,128 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,129 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 16:20:28,163 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,164 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 12 treesize of output 15 [2018-04-11 16:20:28,164 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,172 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,172 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,172 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 [2018-04-11 16:20:28,173 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,179 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-11 16:20:28,200 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:20:28,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:28,211 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 10 treesize of output 9 [2018-04-11 16:20:28,211 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,212 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:28,221 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 10 treesize of output 9 [2018-04-11 16:20:28,221 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,222 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,229 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:64, output treesize:45 [2018-04-11 16:20:28,283 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,283 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,284 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,284 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 28 treesize of output 58 [2018-04-11 16:20:28,284 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,294 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. [2018-04-11 16:20:28,294 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:73 [2018-04-11 16:20:28,327 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,329 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 23 treesize of output 30 [2018-04-11 16:20:28,330 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 16 treesize of output 15 [2018-04-11 16:20:28,331 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,334 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,350 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,352 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 69 treesize of output 70 [2018-04-11 16:20:28,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:20:28,353 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,359 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:28,372 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:111, output treesize:98 [2018-04-11 16:20:28,439 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,440 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 20 treesize of output 29 [2018-04-11 16:20:28,440 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,464 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,464 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,465 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,465 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 86 [2018-04-11 16:20:28,466 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,478 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:28,478 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:139, output treesize:130 [2018-04-11 16:20:28,526 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,529 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 23 treesize of output 36 [2018-04-11 16:20:28,530 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 22 treesize of output 21 [2018-04-11 16:20:28,530 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,534 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,554 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,554 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 137 treesize of output 127 [2018-04-11 16:20:28,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:20:28,560 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,573 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,589 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. [2018-04-11 16:20:28,589 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:156, output treesize:142 [2018-04-11 16:20:28,686 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 165 [2018-04-11 16:20:28,688 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 27 [2018-04-11 16:20:28,688 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 59 treesize of output 60 [2018-04-11 16:20:28,726 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 27 [2018-04-11 16:20:28,726 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,729 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,754 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:28,754 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:285, output treesize:241 [2018-04-11 16:20:28,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 129 [2018-04-11 16:20:28,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 55 treesize of output 35 [2018-04-11 16:20:28,840 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:28,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 17 [2018-04-11 16:20:28,853 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,865 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 1 case distinctions, treesize of input 35 treesize of output 28 [2018-04-11 16:20:28,866 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:28,879 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 7 treesize of output 1 [2018-04-11 16:20:28,879 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,891 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:28,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 54 [2018-04-11 16:20:28,912 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 7 treesize of output 1 [2018-04-11 16:20:28,912 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,920 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:28,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-04-11 16:20:28,921 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,926 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2018-04-11 16:20:28,932 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 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 16:20:28,932 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:28,942 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 7 treesize of output 1 [2018-04-11 16:20:28,942 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:28,949 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:20:28,972 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-04-11 16:20:28,972 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 7 variables, input treesize:259, output treesize:67 [2018-04-11 16:20:29,174 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:20:29,175 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:29,175 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 16:20:29,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 16:20:29,175 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 16:20:29,175 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2018-04-11 16:20:29,176 INFO L87 Difference]: Start difference. First operand 334 states and 382 transitions. Second operand 29 states. [2018-04-11 16:20:31,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:31,825 INFO L93 Difference]: Finished difference Result 400 states and 440 transitions. [2018-04-11 16:20:31,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 16:20:31,825 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 78 [2018-04-11 16:20:31,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:31,826 INFO L225 Difference]: With dead ends: 400 [2018-04-11 16:20:31,826 INFO L226 Difference]: Without dead ends: 400 [2018-04-11 16:20:31,826 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=466, Invalid=3316, Unknown=0, NotChecked=0, Total=3782 [2018-04-11 16:20:31,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2018-04-11 16:20:31,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 332. [2018-04-11 16:20:31,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2018-04-11 16:20:31,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 379 transitions. [2018-04-11 16:20:31,835 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 379 transitions. Word has length 78 [2018-04-11 16:20:31,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:31,835 INFO L459 AbstractCegarLoop]: Abstraction has 332 states and 379 transitions. [2018-04-11 16:20:31,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 16:20:31,835 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 379 transitions. [2018-04-11 16:20:31,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-11 16:20:31,836 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:31,836 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:20:31,836 INFO L408 AbstractCegarLoop]: === Iteration 45 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:20:31,836 INFO L82 PathProgramCache]: Analyzing trace with hash -441800232, now seen corresponding path program 3 times [2018-04-11 16:20:31,836 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:31,837 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:31,837 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:31,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:31,837 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:31,843 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:31,845 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:31,845 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:31,845 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:31,846 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 16:20:31,878 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-11 16:20:31,879 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:31,883 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:31,891 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 [2018-04-11 16:20:31,892 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:31,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:31,895 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:20:31,933 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:31,934 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:31,934 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 [2018-04-11 16:20:31,934 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:31,945 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 12 treesize of output 15 [2018-04-11 16:20:31,945 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:31,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:31,955 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:27 [2018-04-11 16:20:31,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:20:31,989 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:32,008 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 10 treesize of output 9 [2018-04-11 16:20:32,009 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,010 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:32,027 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 10 treesize of output 9 [2018-04-11 16:20:32,027 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,029 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,041 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,041 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:65, output treesize:37 [2018-04-11 16:20:32,122 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 14 [2018-04-11 16:20:32,123 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 14 treesize of output 13 [2018-04-11 16:20:32,123 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,137 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. [2018-04-11 16:20:32,137 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:71, output treesize:73 [2018-04-11 16:20:32,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,160 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 13 [2018-04-11 16:20:32,161 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,175 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. [2018-04-11 16:20:32,175 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:81, output treesize:74 [2018-04-11 16:20:32,219 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,222 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2018-04-11 16:20:32,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:20:32,224 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,232 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,249 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 32 treesize of output 39 [2018-04-11 16:20:32,253 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 16 treesize of output 15 [2018-04-11 16:20:32,253 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,258 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,273 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. [2018-04-11 16:20:32,273 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:97, output treesize:88 [2018-04-11 16:20:32,357 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,359 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,360 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 25 treesize of output 59 [2018-04-11 16:20:32,361 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 36 treesize of output 58 [2018-04-11 16:20:32,361 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,367 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,384 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:32,385 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:141, output treesize:136 [2018-04-11 16:20:32,424 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,425 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,427 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,431 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 175 [2018-04-11 16:20:32,433 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 34 treesize of output 33 [2018-04-11 16:20:32,433 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,446 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,465 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,466 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 180 [2018-04-11 16:20:32,473 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 34 treesize of output 33 [2018-04-11 16:20:32,473 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,485 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,502 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:32,502 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:204, output treesize:172 [2018-04-11 16:20:32,619 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,620 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,621 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 139 [2018-04-11 16:20:32,626 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:32,632 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 117 treesize of output 101 [2018-04-11 16:20:32,633 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:32,657 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2018-04-11 16:20:32,657 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:32,667 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 13 treesize of output 1 [2018-04-11 16:20:32,667 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,674 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:32,691 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 63 [2018-04-11 16:20:32,695 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 1 [2018-04-11 16:20:32,695 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,703 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:32,703 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-04-11 16:20:32,703 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,708 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 19 treesize of output 7 [2018-04-11 16:20:32,708 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,710 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,719 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. [2018-04-11 16:20:32,719 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:193, output treesize:24 [2018-04-11 16:20:32,786 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,787 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:32,787 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-04-11 16:20:32,789 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:32,792 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 21 [2018-04-11 16:20:32,792 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:32,798 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 5 treesize of output 1 [2018-04-11 16:20:32,799 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,800 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:32,804 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:34, output treesize:3 [2018-04-11 16:20:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-04-11 16:20:32,846 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:32,846 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 16:20:32,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 16:20:32,846 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 16:20:32,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2018-04-11 16:20:32,846 INFO L87 Difference]: Start difference. First operand 332 states and 379 transitions. Second operand 26 states. [2018-04-11 16:20:34,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:34,802 INFO L93 Difference]: Finished difference Result 411 states and 458 transitions. [2018-04-11 16:20:34,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 16:20:34,803 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 81 [2018-04-11 16:20:34,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:34,803 INFO L225 Difference]: With dead ends: 411 [2018-04-11 16:20:34,803 INFO L226 Difference]: Without dead ends: 411 [2018-04-11 16:20:34,804 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=360, Invalid=2292, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 16:20:34,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2018-04-11 16:20:34,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 332. [2018-04-11 16:20:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2018-04-11 16:20:34,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 378 transitions. [2018-04-11 16:20:34,806 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 378 transitions. Word has length 81 [2018-04-11 16:20:34,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:34,806 INFO L459 AbstractCegarLoop]: Abstraction has 332 states and 378 transitions. [2018-04-11 16:20:34,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 16:20:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 378 transitions. [2018-04-11 16:20:34,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-11 16:20:34,806 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:34,806 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:20:34,806 INFO L408 AbstractCegarLoop]: === Iteration 46 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:20:34,807 INFO L82 PathProgramCache]: Analyzing trace with hash -955941256, now seen corresponding path program 1 times [2018-04-11 16:20:34,807 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:34,807 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:34,807 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:34,807 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:34,807 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:34,814 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:34,816 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:34,816 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:34,817 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:34,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:34,842 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:34,852 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 [2018-04-11 16:20:34,852 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,856 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 [2018-04-11 16:20:34,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,859 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-11 16:20:34,882 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:34,882 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 12 treesize of output 15 [2018-04-11 16:20:34,883 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,891 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:34,891 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:34,892 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 [2018-04-11 16:20:34,892 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,899 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-11 16:20:34,922 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 13 treesize of output 10 [2018-04-11 16:20:34,923 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 10 treesize of output 9 [2018-04-11 16:20:34,923 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,924 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,937 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 13 treesize of output 10 [2018-04-11 16:20:34,938 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 10 treesize of output 9 [2018-04-11 16:20:34,938 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,939 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,949 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:67, output treesize:65 [2018-04-11 16:20:34,965 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 19 treesize of output 15 [2018-04-11 16:20:34,966 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-04-11 16:20:34,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,967 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:34,976 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. [2018-04-11 16:20:34,976 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:80, output treesize:65 [2018-04-11 16:20:35,027 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,028 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 53 [2018-04-11 16:20:35,028 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,047 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,048 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,048 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,049 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-04-11 16:20:35,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,064 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. [2018-04-11 16:20:35,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:89, output treesize:96 [2018-04-11 16:20:35,109 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,110 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 65 treesize of output 77 [2018-04-11 16:20:35,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:20:35,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,147 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,161 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. [2018-04-11 16:20:35,162 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:114, output treesize:110 [2018-04-11 16:20:35,250 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 60 treesize of output 55 [2018-04-11 16:20:35,251 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,266 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,268 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,269 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 116 [2018-04-11 16:20:35,271 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 40 treesize of output 48 [2018-04-11 16:20:35,272 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,280 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,291 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. [2018-04-11 16:20:35,292 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:196, output treesize:105 [2018-04-11 16:20:35,428 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,429 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,429 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,430 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 94 [2018-04-11 16:20:35,430 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:35,446 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:118, output treesize:96 [2018-04-11 16:20:35,503 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:35,504 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,504 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,505 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,505 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,506 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 88 [2018-04-11 16:20:35,509 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:35,513 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 27 [2018-04-11 16:20:35,514 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:35,529 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 1 case distinctions, treesize of input 33 treesize of output 26 [2018-04-11 16:20:35,529 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:35,539 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 7 treesize of output 1 [2018-04-11 16:20:35,540 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,547 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:35,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:35,563 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:105, output treesize:58 [2018-04-11 16:20:35,666 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,667 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,667 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:35,668 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 36 [2018-04-11 16:20:35,668 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:35,673 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. [2018-04-11 16:20:35,673 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:30, output treesize:24 [2018-04-11 16:20:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 16:20:35,778 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:35,778 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-11 16:20:35,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 16:20:35,778 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 16:20:35,779 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870 [2018-04-11 16:20:35,779 INFO L87 Difference]: Start difference. First operand 332 states and 378 transitions. Second operand 30 states. [2018-04-11 16:20:37,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:37,745 INFO L93 Difference]: Finished difference Result 368 states and 416 transitions. [2018-04-11 16:20:37,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 16:20:37,745 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 81 [2018-04-11 16:20:37,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:37,746 INFO L225 Difference]: With dead ends: 368 [2018-04-11 16:20:37,746 INFO L226 Difference]: Without dead ends: 368 [2018-04-11 16:20:37,746 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=345, Invalid=2847, Unknown=0, NotChecked=0, Total=3192 [2018-04-11 16:20:37,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2018-04-11 16:20:37,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 340. [2018-04-11 16:20:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-04-11 16:20:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 387 transitions. [2018-04-11 16:20:37,748 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 387 transitions. Word has length 81 [2018-04-11 16:20:37,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:37,749 INFO L459 AbstractCegarLoop]: Abstraction has 340 states and 387 transitions. [2018-04-11 16:20:37,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 16:20:37,749 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 387 transitions. [2018-04-11 16:20:37,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-04-11 16:20:37,749 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:37,749 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:20:37,749 INFO L408 AbstractCegarLoop]: === Iteration 47 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:20:37,749 INFO L82 PathProgramCache]: Analyzing trace with hash -955941255, now seen corresponding path program 1 times [2018-04-11 16:20:37,749 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:37,749 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:37,750 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:37,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:37,750 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:37,760 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:37,772 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:37,773 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:37,773 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:37,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:37,808 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:37,810 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 [2018-04-11 16:20:37,810 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,813 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,813 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:20:37,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:37,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:37,836 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 [2018-04-11 16:20:37,837 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,843 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-11 16:20:37,871 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 13 treesize of output 10 [2018-04-11 16:20:37,872 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 10 treesize of output 9 [2018-04-11 16:20:37,872 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,876 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,885 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 13 treesize of output 10 [2018-04-11 16:20:37,887 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 10 treesize of output 9 [2018-04-11 16:20:37,887 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,888 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,895 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:47, output treesize:42 [2018-04-11 16:20:37,937 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 [2018-04-11 16:20:37,937 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,948 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:37,948 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:37,949 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:37,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 20 treesize of output 21 [2018-04-11 16:20:37,949 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,957 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,957 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:53 [2018-04-11 16:20:37,990 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:37,992 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:37,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 49 [2018-04-11 16:20:37,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:20:37,994 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:37,999 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,010 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:38,012 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 28 treesize of output 33 [2018-04-11 16:20:38,013 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 14 treesize of output 13 [2018-04-11 16:20:38,013 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,017 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,027 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:79, output treesize:73 [2018-04-11 16:20:38,104 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:38,107 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:38,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 129 [2018-04-11 16:20:38,110 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 20 treesize of output 19 [2018-04-11 16:20:38,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,120 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,134 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:38,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 101 [2018-04-11 16:20:38,140 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 20 treesize of output 19 [2018-04-11 16:20:38,140 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,148 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:38,160 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:160, output treesize:132 [2018-04-11 16:20:38,381 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:38,381 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:38,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 110 [2018-04-11 16:20:38,385 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 7 treesize of output 1 [2018-04-11 16:20:38,385 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,399 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 1 case distinctions, treesize of input 48 treesize of output 37 [2018-04-11 16:20:38,400 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:38,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 72 treesize of output 62 [2018-04-11 16:20:38,416 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:38,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 64 treesize of output 54 [2018-04-11 16:20:38,418 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:38,436 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:38,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 56 [2018-04-11 16:20:38,464 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 7 treesize of output 1 [2018-04-11 16:20:38,464 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,474 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 [2018-04-11 16:20:38,474 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,484 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 19 [2018-04-11 16:20:38,484 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:38,493 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:20:38,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2018-04-11 16:20:38,497 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:38,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 15 [2018-04-11 16:20:38,499 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,509 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 [2018-04-11 16:20:38,509 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,516 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 7 treesize of output 1 [2018-04-11 16:20:38,516 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,521 INFO L267 ElimStorePlain]: Start of recursive call 11: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:38,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-04-11 16:20:38,545 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 5 variables, input treesize:158, output treesize:43 [2018-04-11 16:20:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 16:20:38,689 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:38,689 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 16:20:38,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 16:20:38,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 16:20:38,689 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=644, Unknown=0, NotChecked=0, Total=702 [2018-04-11 16:20:38,689 INFO L87 Difference]: Start difference. First operand 340 states and 387 transitions. Second operand 27 states. [2018-04-11 16:20:41,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:41,514 INFO L93 Difference]: Finished difference Result 388 states and 435 transitions. [2018-04-11 16:20:41,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 16:20:41,514 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 81 [2018-04-11 16:20:41,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:41,515 INFO L225 Difference]: With dead ends: 388 [2018-04-11 16:20:41,515 INFO L226 Difference]: Without dead ends: 388 [2018-04-11 16:20:41,515 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=294, Invalid=2568, Unknown=0, NotChecked=0, Total=2862 [2018-04-11 16:20:41,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-04-11 16:20:41,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 329. [2018-04-11 16:20:41,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2018-04-11 16:20:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 375 transitions. [2018-04-11 16:20:41,517 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 375 transitions. Word has length 81 [2018-04-11 16:20:41,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:41,517 INFO L459 AbstractCegarLoop]: Abstraction has 329 states and 375 transitions. [2018-04-11 16:20:41,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 16:20:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 375 transitions. [2018-04-11 16:20:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-11 16:20:41,518 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:41,518 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:41,518 INFO L408 AbstractCegarLoop]: === Iteration 48 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:20:41,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1245178698, now seen corresponding path program 4 times [2018-04-11 16:20:41,518 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:41,518 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:41,519 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:41,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:41,519 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:41,525 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:41,528 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:41,528 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:41,528 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:41,529 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 16:20:41,560 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 16:20:41,560 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:41,563 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:41,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,580 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 [2018-04-11 16:20:41,580 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,584 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-04-11 16:20:41,602 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:41,603 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 10 treesize of output 9 [2018-04-11 16:20:41,603 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,605 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:41,628 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 10 treesize of output 9 [2018-04-11 16:20:41,628 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,630 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,639 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:45, output treesize:34 [2018-04-11 16:20:41,703 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 14 [2018-04-11 16:20:41,704 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 14 treesize of output 19 [2018-04-11 16:20:41,704 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,706 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,716 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,716 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:65, output treesize:70 [2018-04-11 16:20:41,736 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,738 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,738 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 22 treesize of output 49 [2018-04-11 16:20:41,738 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,754 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,754 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:92 [2018-04-11 16:20:41,810 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 51 treesize of output 58 [2018-04-11 16:20:41,814 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 16 treesize of output 15 [2018-04-11 16:20:41,815 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,821 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,841 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,843 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 90 [2018-04-11 16:20:41,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:20:41,845 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,854 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,868 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,869 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:115, output treesize:112 [2018-04-11 16:20:41,957 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:41,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 58 [2018-04-11 16:20:41,960 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 27 [2018-04-11 16:20:41,961 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,964 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:41,978 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:197, output treesize:184 [2018-04-11 16:20:42,040 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 63 [2018-04-11 16:20:42,044 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,044 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,044 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 34 treesize of output 105 [2018-04-11 16:20:42,045 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,069 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,069 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:207, output treesize:254 [2018-04-11 16:20:42,103 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,104 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,104 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,105 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,106 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,106 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 104 [2018-04-11 16:20:42,106 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,124 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:262, output treesize:254 [2018-04-11 16:20:42,202 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,203 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,203 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 268 [2018-04-11 16:20:42,210 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 10 treesize of output 9 [2018-04-11 16:20:42,210 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,228 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,252 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,253 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,254 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,255 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,256 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 250 [2018-04-11 16:20:42,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 32 [2018-04-11 16:20:42,259 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,276 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,292 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,293 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:280, output treesize:228 [2018-04-11 16:20:42,419 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,420 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,421 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,425 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,426 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 260 [2018-04-11 16:20:42,428 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 93 treesize of output 174 [2018-04-11 16:20:42,428 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,442 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,464 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:452, output treesize:374 [2018-04-11 16:20:42,517 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,519 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,520 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,521 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,522 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,528 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,529 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,531 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 508 treesize of output 522 [2018-04-11 16:20:42,536 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 52 treesize of output 51 [2018-04-11 16:20:42,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,585 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,586 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,586 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,587 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,588 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 590 [2018-04-11 16:20:42,599 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 52 treesize of output 51 [2018-04-11 16:20:42,599 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,621 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:42,641 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:523, output treesize:431 [2018-04-11 16:20:42,743 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,747 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,748 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,748 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,749 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,750 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,751 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,752 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 347 [2018-04-11 16:20:42,772 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 127 treesize of output 103 [2018-04-11 16:20:42,774 INFO L267 ElimStorePlain]: Start of recursive call 3: 17 dim-0 vars, End of recursive call: 17 dim-0 vars, and 7 xjuncts. [2018-04-11 16:20:42,850 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 7 treesize of output 1 [2018-04-11 16:20:42,850 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,926 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 1 case distinctions, treesize of input 218 treesize of output 201 [2018-04-11 16:20:42,926 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:42,928 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:42,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 197 [2018-04-11 16:20:42,930 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,931 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 188 treesize of output 167 [2018-04-11 16:20:42,932 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 204 treesize of output 189 [2018-04-11 16:20:42,938 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:42,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 194 treesize of output 173 [2018-04-11 16:20:42,940 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:42,947 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 1 case distinctions, treesize of input 194 treesize of output 179 [2018-04-11 16:20:42,947 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:42,954 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 1 case distinctions, treesize of input 200 treesize of output 185 [2018-04-11 16:20:42,954 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:43,133 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 161 [2018-04-11 16:20:43,134 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:43,140 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 189 treesize of output 153 [2018-04-11 16:20:43,141 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:43,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 179 treesize of output 131 [2018-04-11 16:20:43,143 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:43,148 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 185 treesize of output 149 [2018-04-11 16:20:43,149 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:43,164 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 185 treesize of output 149 [2018-04-11 16:20:43,165 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:43,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 189 treesize of output 153 [2018-04-11 16:20:43,172 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:43,173 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 179 treesize of output 131 [2018-04-11 16:20:43,174 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:43,431 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 22 dim-0 vars, and 11 xjuncts. [2018-04-11 16:20:43,660 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,660 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:43,667 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 7 [2018-04-11 16:20:43,667 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,691 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 7 treesize of output 1 [2018-04-11 16:20:43,691 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,703 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 57 treesize of output 36 [2018-04-11 16:20:43,703 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,713 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 26 treesize of output 15 [2018-04-11 16:20:43,713 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,721 INFO L267 ElimStorePlain]: Start of recursive call 19: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,723 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,724 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:43,729 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 83 treesize of output 54 [2018-04-11 16:20:43,729 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,746 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2018-04-11 16:20:43,747 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,758 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 26 treesize of output 15 [2018-04-11 16:20:43,759 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,769 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 7 treesize of output 1 [2018-04-11 16:20:43,769 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,777 INFO L267 ElimStorePlain]: Start of recursive call 24: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,779 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,780 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:43,785 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 7 treesize of output 1 [2018-04-11 16:20:43,785 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,802 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 7 [2018-04-11 16:20:43,803 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,815 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 38 treesize of output 15 [2018-04-11 16:20:43,815 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,825 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 20 treesize of output 11 [2018-04-11 16:20:43,826 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,834 INFO L267 ElimStorePlain]: Start of recursive call 29: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,835 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:43,842 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 64 treesize of output 25 [2018-04-11 16:20:43,842 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,866 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 7 treesize of output 1 [2018-04-11 16:20:43,866 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,880 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 20 treesize of output 11 [2018-04-11 16:20:43,880 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,891 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-04-11 16:20:43,892 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,900 INFO L267 ElimStorePlain]: Start of recursive call 34: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,902 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,902 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:43,908 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 7 [2018-04-11 16:20:43,908 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,924 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 7 treesize of output 1 [2018-04-11 16:20:43,924 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,936 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 57 treesize of output 36 [2018-04-11 16:20:43,937 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,947 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 26 treesize of output 15 [2018-04-11 16:20:43,947 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,959 INFO L267 ElimStorePlain]: Start of recursive call 39: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,961 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,962 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:43,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:43,967 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 7 [2018-04-11 16:20:43,967 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,983 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 38 treesize of output 15 [2018-04-11 16:20:43,983 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:43,996 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 7 treesize of output 1 [2018-04-11 16:20:43,996 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,007 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 20 treesize of output 11 [2018-04-11 16:20:44,007 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,015 INFO L267 ElimStorePlain]: Start of recursive call 44: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,017 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,017 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:44,023 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 83 treesize of output 54 [2018-04-11 16:20:44,023 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,039 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 44 treesize of output 25 [2018-04-11 16:20:44,040 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,052 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 7 treesize of output 1 [2018-04-11 16:20:44,053 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,064 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-04-11 16:20:44,064 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,073 INFO L267 ElimStorePlain]: Start of recursive call 49: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,075 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:44,081 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 64 treesize of output 25 [2018-04-11 16:20:44,081 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,097 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-04-11 16:20:44,097 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,109 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 20 treesize of output 11 [2018-04-11 16:20:44,110 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,120 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 7 treesize of output 1 [2018-04-11 16:20:44,120 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,129 INFO L267 ElimStorePlain]: Start of recursive call 54: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,130 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,131 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:44,136 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 7 treesize of output 1 [2018-04-11 16:20:44,137 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,153 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 83 treesize of output 54 [2018-04-11 16:20:44,154 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,166 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2018-04-11 16:20:44,167 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,177 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 26 treesize of output 15 [2018-04-11 16:20:44,177 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,185 INFO L267 ElimStorePlain]: Start of recursive call 59: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,187 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,188 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,192 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:44,193 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 7 treesize of output 1 [2018-04-11 16:20:44,193 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,211 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 64 treesize of output 25 [2018-04-11 16:20:44,211 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,224 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-04-11 16:20:44,224 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,235 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 20 treesize of output 11 [2018-04-11 16:20:44,235 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,245 INFO L267 ElimStorePlain]: Start of recursive call 64: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,251 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,251 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 121 [2018-04-11 16:20:44,257 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 83 treesize of output 54 [2018-04-11 16:20:44,257 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,281 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 44 treesize of output 25 [2018-04-11 16:20:44,282 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,295 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 7 treesize of output 1 [2018-04-11 16:20:44,295 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,306 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-04-11 16:20:44,306 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,314 INFO L267 ElimStorePlain]: Start of recursive call 69: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,451 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 33 dim-0 vars, and 11 xjuncts. [2018-04-11 16:20:44,451 INFO L202 ElimStorePlain]: Needed 73 recursive calls to eliminate 4 variables, input treesize:368, output treesize:463 [2018-04-11 16:20:44,613 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,613 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,614 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,615 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 46 [2018-04-11 16:20:44,618 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:44,623 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 23 [2018-04-11 16:20:44,623 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,629 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:44,629 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 7 [2018-04-11 16:20:44,629 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,633 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 5 treesize of output 1 [2018-04-11 16:20:44,633 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,636 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:44,642 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:52, output treesize:3 [2018-04-11 16:20:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 6 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:20:44,695 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:44,695 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-11 16:20:44,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 16:20:44,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 16:20:44,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 16:20:44,696 INFO L87 Difference]: Start difference. First operand 329 states and 375 transitions. Second operand 33 states. [2018-04-11 16:20:46,069 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 99 DAG size of output 80 [2018-04-11 16:20:47,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:47,495 INFO L93 Difference]: Finished difference Result 482 states and 538 transitions. [2018-04-11 16:20:47,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-11 16:20:47,495 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 82 [2018-04-11 16:20:47,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:47,496 INFO L225 Difference]: With dead ends: 482 [2018-04-11 16:20:47,496 INFO L226 Difference]: Without dead ends: 480 [2018-04-11 16:20:47,497 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=471, Invalid=3819, Unknown=0, NotChecked=0, Total=4290 [2018-04-11 16:20:47,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2018-04-11 16:20:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 363. [2018-04-11 16:20:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-04-11 16:20:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2018-04-11 16:20:47,501 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 82 [2018-04-11 16:20:47,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:47,501 INFO L459 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2018-04-11 16:20:47,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 16:20:47,501 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2018-04-11 16:20:47,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-11 16:20:47,501 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:47,502 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:47,502 INFO L408 AbstractCegarLoop]: === Iteration 49 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:20:47,502 INFO L82 PathProgramCache]: Analyzing trace with hash -664549760, now seen corresponding path program 7 times [2018-04-11 16:20:47,502 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:47,502 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:47,502 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:47,502 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:47,502 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:47,509 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:47,511 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:47,511 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:47,512 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:47,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:47,554 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:47,566 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 [2018-04-11 16:20:47,567 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,570 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 [2018-04-11 16:20:47,571 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,574 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-11 16:20:47,603 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,604 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 12 treesize of output 15 [2018-04-11 16:20:47,604 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,615 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,616 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,616 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 [2018-04-11 16:20:47,617 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,624 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,624 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-11 16:20:47,651 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 13 treesize of output 10 [2018-04-11 16:20:47,653 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 10 treesize of output 9 [2018-04-11 16:20:47,653 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,655 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,671 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 13 treesize of output 10 [2018-04-11 16:20:47,673 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 10 treesize of output 9 [2018-04-11 16:20:47,673 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,675 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,688 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,689 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:62, output treesize:54 [2018-04-11 16:20:47,804 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,805 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,806 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 30 treesize of output 53 [2018-04-11 16:20:47,806 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,837 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,838 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,839 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,839 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 46 [2018-04-11 16:20:47,840 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,865 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. [2018-04-11 16:20:47,865 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:85, output treesize:92 [2018-04-11 16:20:47,948 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,951 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:47,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 67 [2018-04-11 16:20:47,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:20:47,955 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,966 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:47,998 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 23 treesize of output 30 [2018-04-11 16:20:48,002 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 16 treesize of output 15 [2018-04-11 16:20:48,002 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,006 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:48,026 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:130, output treesize:107 [2018-04-11 16:20:48,137 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,137 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,138 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,138 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 137 [2018-04-11 16:20:48,139 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,164 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,164 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,165 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,165 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,166 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,166 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 86 [2018-04-11 16:20:48,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,184 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:48,184 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:166, output treesize:157 [2018-04-11 16:20:48,237 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,237 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,238 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,241 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 142 [2018-04-11 16:20:48,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:20:48,252 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,268 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,292 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,294 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 23 treesize of output 36 [2018-04-11 16:20:48,296 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 22 treesize of output 21 [2018-04-11 16:20:48,296 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,299 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,321 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. [2018-04-11 16:20:48,321 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:188, output treesize:186 [2018-04-11 16:20:48,425 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,429 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 206 [2018-04-11 16:20:48,436 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 27 [2018-04-11 16:20:48,436 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,461 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 59 treesize of output 60 [2018-04-11 16:20:48,499 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 27 [2018-04-11 16:20:48,499 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,503 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,525 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:48,525 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:329, output treesize:285 [2018-04-11 16:20:48,663 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 142 [2018-04-11 16:20:48,663 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 44 [2018-04-11 16:20:48,689 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 7 treesize of output 1 [2018-04-11 16:20:48,689 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,694 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:48,694 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-04-11 16:20:48,694 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,696 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:48,714 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:313, output treesize:197 [2018-04-11 16:20:48,852 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:48,853 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,855 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:48,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 120 [2018-04-11 16:20:48,861 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:48,865 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 49 [2018-04-11 16:20:48,865 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:20:48,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 46 treesize of output 34 [2018-04-11 16:20:48,881 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 17 treesize of output 9 [2018-04-11 16:20:48,887 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,890 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 7 treesize of output 1 [2018-04-11 16:20:48,891 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,892 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,900 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:48,900 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:206, output treesize:5 [2018-04-11 16:20:48,998 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:20:48,998 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:48,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-11 16:20:48,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 16:20:48,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 16:20:48,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=832, Unknown=0, NotChecked=0, Total=930 [2018-04-11 16:20:48,999 INFO L87 Difference]: Start difference. First operand 363 states and 415 transitions. Second operand 31 states. [2018-04-11 16:20:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:52,278 INFO L93 Difference]: Finished difference Result 422 states and 470 transitions. [2018-04-11 16:20:52,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-11 16:20:52,278 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 82 [2018-04-11 16:20:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:52,279 INFO L225 Difference]: With dead ends: 422 [2018-04-11 16:20:52,280 INFO L226 Difference]: Without dead ends: 422 [2018-04-11 16:20:52,280 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=511, Invalid=3649, Unknown=0, NotChecked=0, Total=4160 [2018-04-11 16:20:52,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2018-04-11 16:20:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 366. [2018-04-11 16:20:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-04-11 16:20:52,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 419 transitions. [2018-04-11 16:20:52,284 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 419 transitions. Word has length 82 [2018-04-11 16:20:52,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:52,284 INFO L459 AbstractCegarLoop]: Abstraction has 366 states and 419 transitions. [2018-04-11 16:20:52,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 16:20:52,284 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 419 transitions. [2018-04-11 16:20:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-11 16:20:52,285 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:52,285 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:20:52,285 INFO L408 AbstractCegarLoop]: === Iteration 50 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:20:52,285 INFO L82 PathProgramCache]: Analyzing trace with hash -664549759, now seen corresponding path program 5 times [2018-04-11 16:20:52,286 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:52,286 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:52,286 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:52,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:52,286 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:52,302 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:52,308 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:52,308 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:52,308 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:52,309 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-11 16:20:52,363 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-04-11 16:20:52,363 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:20:52,367 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:52,377 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 [2018-04-11 16:20:52,378 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,381 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,381 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:20:52,403 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,404 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,404 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:20:52,405 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,414 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 [2018-04-11 16:20:52,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,424 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2018-04-11 16:20:52,455 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 13 treesize of output 10 [2018-04-11 16:20:52,456 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 10 treesize of output 9 [2018-04-11 16:20:52,456 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,457 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,464 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:47 [2018-04-11 16:20:52,517 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,518 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 18 treesize of output 27 [2018-04-11 16:20:52,518 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,530 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,531 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,531 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,532 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,532 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 22 treesize of output 49 [2018-04-11 16:20:52,533 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,544 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:74 [2018-04-11 16:20:52,592 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,594 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 67 [2018-04-11 16:20:52,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:20:52,596 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,602 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-04-11 16:20:52,618 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 16 treesize of output 15 [2018-04-11 16:20:52,618 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,619 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,632 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,632 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:109, output treesize:101 [2018-04-11 16:20:52,744 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,745 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,745 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,746 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,746 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 86 [2018-04-11 16:20:52,747 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 95 [2018-04-11 16:20:52,765 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,785 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. [2018-04-11 16:20:52,785 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:163, output treesize:154 [2018-04-11 16:20:52,839 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,839 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,840 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,842 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,843 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,843 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 179 [2018-04-11 16:20:52,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 32 [2018-04-11 16:20:52,846 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,864 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,882 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:52,885 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 29 treesize of output 48 [2018-04-11 16:20:52,886 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 22 treesize of output 21 [2018-04-11 16:20:52,886 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,890 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:52,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:52,908 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:187, output treesize:147 [2018-04-11 16:20:53,003 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,004 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,005 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,009 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,010 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,011 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 239 [2018-04-11 16:20:53,016 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 27 [2018-04-11 16:20:53,016 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,038 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 65 treesize of output 72 [2018-04-11 16:20:53,061 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 27 [2018-04-11 16:20:53,061 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,065 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,083 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:53,083 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:290, output treesize:246 [2018-04-11 16:20:53,308 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,309 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,309 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,312 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,313 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,313 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:53,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 189 [2018-04-11 16:20:53,316 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:53,331 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 66 treesize of output 78 [2018-04-11 16:20:53,332 INFO L267 ElimStorePlain]: Start of recursive call 3: 10 dim-0 vars, End of recursive call: 10 dim-0 vars, and 7 xjuncts. [2018-04-11 16:20:53,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 78 treesize of output 58 [2018-04-11 16:20:53,374 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:53,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 57 treesize of output 43 [2018-04-11 16:20:53,393 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:53,410 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 7 treesize of output 1 [2018-04-11 16:20:53,411 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,427 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:53,447 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2018-04-11 16:20:53,449 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:53,449 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 15 treesize of output 11 [2018-04-11 16:20:53,449 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,454 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 7 treesize of output 1 [2018-04-11 16:20:53,454 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,455 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:53,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:53,470 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 7 variables, input treesize:257, output treesize:41 [2018-04-11 16:20:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:20:53,592 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:20:53,592 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 16:20:53,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 16:20:53,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 16:20:53,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2018-04-11 16:20:53,593 INFO L87 Difference]: Start difference. First operand 366 states and 419 transitions. Second operand 29 states. [2018-04-11 16:20:56,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:20:56,760 INFO L93 Difference]: Finished difference Result 448 states and 498 transitions. [2018-04-11 16:20:56,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 16:20:56,760 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 82 [2018-04-11 16:20:56,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:20:56,761 INFO L225 Difference]: With dead ends: 448 [2018-04-11 16:20:56,761 INFO L226 Difference]: Without dead ends: 448 [2018-04-11 16:20:56,762 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=368, Invalid=2938, Unknown=0, NotChecked=0, Total=3306 [2018-04-11 16:20:56,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2018-04-11 16:20:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 374. [2018-04-11 16:20:56,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2018-04-11 16:20:56,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 428 transitions. [2018-04-11 16:20:56,764 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 428 transitions. Word has length 82 [2018-04-11 16:20:56,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:20:56,764 INFO L459 AbstractCegarLoop]: Abstraction has 374 states and 428 transitions. [2018-04-11 16:20:56,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 16:20:56,765 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 428 transitions. [2018-04-11 16:20:56,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-11 16:20:56,765 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:20:56,765 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2018-04-11 16:20:56,765 INFO L408 AbstractCegarLoop]: === Iteration 51 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:20:56,765 INFO L82 PathProgramCache]: Analyzing trace with hash 522334410, now seen corresponding path program 1 times [2018-04-11 16:20:56,765 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:20:56,765 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:20:56,766 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:56,766 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:20:56,766 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:20:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:56,772 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:20:56,775 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:20:56,775 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:20:56,775 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:20:56,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:20:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:20:56,797 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:20:56,832 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:56,832 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:56,833 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 [2018-04-11 16:20:56,833 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,838 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-11 16:20:56,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:56,858 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 10 treesize of output 9 [2018-04-11 16:20:56,858 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,859 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:20:56,868 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 10 treesize of output 9 [2018-04-11 16:20:56,868 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,869 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,876 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:47, output treesize:42 [2018-04-11 16:20:56,888 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 [2018-04-11 16:20:56,889 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 [2018-04-11 16:20:56,889 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,890 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,894 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,894 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:44, output treesize:33 [2018-04-11 16:20:56,921 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:56,921 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:56,922 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:56,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 20 treesize of output 28 [2018-04-11 16:20:56,922 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,927 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:34 [2018-04-11 16:20:56,964 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:56,965 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:56,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 49 [2018-04-11 16:20:56,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:20:56,967 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,972 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:56,978 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:50 [2018-04-11 16:20:57,026 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,027 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,027 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 [2018-04-11 16:20:57,027 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,033 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,033 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:63 [2018-04-11 16:20:57,074 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 13 treesize of output 18 [2018-04-11 16:20:57,075 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 18 treesize of output 17 [2018-04-11 16:20:57,075 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,076 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,086 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,086 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,091 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,093 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 90 treesize of output 102 [2018-04-11 16:20:57,096 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 10 treesize of output 9 [2018-04-11 16:20:57,096 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,106 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,114 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:89, output treesize:67 [2018-04-11 16:20:57,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 35 treesize of output 15 [2018-04-11 16:20:57,137 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-04-11 16:20:57,137 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,138 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,144 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. [2018-04-11 16:20:57,145 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:114, output treesize:83 [2018-04-11 16:20:57,225 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,229 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,262 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 123 [2018-04-11 16:20:57,281 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 166 treesize of output 176 [2018-04-11 16:20:57,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:57,359 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:57,364 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 2 case distinctions, treesize of input 50 treesize of output 68 [2018-04-11 16:20:57,364 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:20:57,401 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:20:57,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 65 [2018-04-11 16:20:57,402 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:20:57,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-04-11 16:20:57,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 4 xjuncts. [2018-04-11 16:20:57,480 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:110, output treesize:271 [2018-04-11 16:20:57,813 WARN L148 SmtUtils]: Spent 170ms on a formula simplification that was a NOOP. DAG size: 61 [2018-04-11 16:20:58,070 WARN L148 SmtUtils]: Spent 212ms on a formula simplification that was a NOOP. DAG size: 72 [2018-04-11 16:20:58,624 WARN L148 SmtUtils]: Spent 484ms on a formula simplification that was a NOOP. DAG size: 118 [2018-04-11 16:20:58,628 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 76 treesize of output 72 [2018-04-11 16:20:58,629 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 16 treesize of output 4 [2018-04-11 16:20:58,629 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,706 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 98 treesize of output 94 [2018-04-11 16:20:58,708 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 16 treesize of output 4 [2018-04-11 16:20:58,708 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,715 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 94 [2018-04-11 16:20:58,793 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 16 treesize of output 4 [2018-04-11 16:20:58,794 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,801 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,875 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 76 treesize of output 74 [2018-04-11 16:20:58,876 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 7 treesize of output 1 [2018-04-11 16:20:58,876 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,882 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 106 [2018-04-11 16:20:58,946 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 7 treesize of output 1 [2018-04-11 16:20:58,946 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:58,953 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:59,014 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 98 treesize of output 96 [2018-04-11 16:20:59,015 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 7 treesize of output 1 [2018-04-11 16:20:59,015 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:20:59,022 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:20:59,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 6 dim-2 vars, End of recursive call: 16 dim-0 vars, and 6 xjuncts. [2018-04-11 16:20:59,092 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 22 variables, input treesize:585, output treesize:483 [2018-04-11 16:20:59,620 WARN L148 SmtUtils]: Spent 294ms on a formula simplification that was a NOOP. DAG size: 159 [2018-04-11 16:20:59,961 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:59,961 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:59,962 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:59,963 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:59,964 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:59,965 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:20:59,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 108 [2018-04-11 16:20:59,992 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 136 [2018-04-11 16:20:59,992 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-04-11 16:21:00,009 INFO L267 ElimStorePlain]: Start of recursive call 3: 94 dim-0 vars, End of recursive call: 94 dim-0 vars, and 54 xjuncts. [2018-04-11 16:21:00,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 58 [2018-04-11 16:21:00,169 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 50 treesize of output 44 [2018-04-11 16:21:00,170 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,201 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 38 treesize of output 31 [2018-04-11 16:21:00,201 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,202 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 28 treesize of output 21 [2018-04-11 16:21:00,202 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,235 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 1 case distinctions, treesize of input 71 treesize of output 68 [2018-04-11 16:21:00,235 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-11 16:21:00,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 31 treesize of output 23 [2018-04-11 16:21:00,269 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,270 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-11 16:21:00,270 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,297 INFO L267 ElimStorePlain]: Start of recursive call 2: 7 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:00,331 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,333 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,333 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 100 [2018-04-11 16:21:00,348 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 85 [2018-04-11 16:21:00,348 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 61 treesize of output 53 [2018-04-11 16:21:00,384 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 43 treesize of output 39 [2018-04-11 16:21:00,414 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,439 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,439 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,440 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:00,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2018-04-11 16:21:00,441 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 51 treesize of output 43 [2018-04-11 16:21:00,458 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,477 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:00,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-04-11 16:21:00,478 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,487 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,487 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 23 treesize of output 20 [2018-04-11 16:21:00,488 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,495 INFO L267 ElimStorePlain]: Start of recursive call 11: 10 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,522 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,523 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,524 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,524 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 69 [2018-04-11 16:21:00,529 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 25 [2018-04-11 16:21:00,529 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,538 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,539 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 20 treesize of output 15 [2018-04-11 16:21:00,539 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,543 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 7 treesize of output 1 [2018-04-11 16:21:00,543 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,545 INFO L267 ElimStorePlain]: Start of recursive call 19: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,566 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,567 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,567 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,568 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,568 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,569 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:00,569 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 75 [2018-04-11 16:21:00,591 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 81 [2018-04-11 16:21:00,591 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-04-11 16:21:00,602 INFO L267 ElimStorePlain]: Start of recursive call 24: 94 dim-0 vars, End of recursive call: 94 dim-0 vars, and 54 xjuncts. [2018-04-11 16:21:00,716 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 7 treesize of output 1 [2018-04-11 16:21:00,716 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 27 treesize of output 21 [2018-04-11 16:21:00,723 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 19 treesize of output 15 [2018-04-11 16:21:00,724 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:00,729 INFO L267 ElimStorePlain]: Start of recursive call 23: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:00,747 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:00,748 INFO L202 ElimStorePlain]: Needed 27 recursive calls to eliminate 14 variables, input treesize:313, output treesize:11 [2018-04-11 16:21:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:21:00,858 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:21:00,858 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-11 16:21:00,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-11 16:21:00,858 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-11 16:21:00,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=970, Unknown=12, NotChecked=0, Total=1056 [2018-04-11 16:21:00,859 INFO L87 Difference]: Start difference. First operand 374 states and 428 transitions. Second operand 33 states. [2018-04-11 16:21:04,096 WARN L151 SmtUtils]: Spent 267ms on a formula simplification. DAG size of input: 259 DAG size of output 184 [2018-04-11 16:21:04,751 WARN L151 SmtUtils]: Spent 494ms on a formula simplification. DAG size of input: 279 DAG size of output 181 [2018-04-11 16:21:05,366 WARN L151 SmtUtils]: Spent 360ms on a formula simplification. DAG size of input: 275 DAG size of output 177 [2018-04-11 16:21:06,138 WARN L148 SmtUtils]: Spent 505ms on a formula simplification that was a NOOP. DAG size: 182 [2018-04-11 16:21:08,868 WARN L148 SmtUtils]: Spent 2488ms on a formula simplification that was a NOOP. DAG size: 188 [2018-04-11 16:21:09,830 WARN L151 SmtUtils]: Spent 644ms on a formula simplification. DAG size of input: 184 DAG size of output 177 [2018-04-11 16:21:10,150 WARN L148 SmtUtils]: Spent 112ms on a formula simplification that was a NOOP. DAG size: 163 [2018-04-11 16:21:10,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:21:10,951 INFO L93 Difference]: Finished difference Result 453 states and 501 transitions. [2018-04-11 16:21:10,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-11 16:21:10,951 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 84 [2018-04-11 16:21:10,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:21:10,952 INFO L225 Difference]: With dead ends: 453 [2018-04-11 16:21:10,952 INFO L226 Difference]: Without dead ends: 452 [2018-04-11 16:21:10,952 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=426, Invalid=3722, Unknown=12, NotChecked=0, Total=4160 [2018-04-11 16:21:10,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2018-04-11 16:21:10,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 386. [2018-04-11 16:21:10,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2018-04-11 16:21:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 440 transitions. [2018-04-11 16:21:10,954 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 440 transitions. Word has length 84 [2018-04-11 16:21:10,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:21:10,955 INFO L459 AbstractCegarLoop]: Abstraction has 386 states and 440 transitions. [2018-04-11 16:21:10,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-11 16:21:10,955 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 440 transitions. [2018-04-11 16:21:10,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 16:21:10,955 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:21:10,955 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:21:10,955 INFO L408 AbstractCegarLoop]: === Iteration 52 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:21:10,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1053144412, now seen corresponding path program 2 times [2018-04-11 16:21:10,955 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:21:10,955 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:21:10,956 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:10,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:21:10,956 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:21:10,964 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:21:10,968 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:21:10,968 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:21:10,968 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:21:10,969 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:21:10,990 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:21:10,990 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:21:10,993 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:21:11,003 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 [2018-04-11 16:21:11,003 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,008 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 [2018-04-11 16:21:11,008 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,012 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,012 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 16:21:11,031 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 [2018-04-11 16:21:11,032 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 [2018-04-11 16:21:11,032 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,033 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,038 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2018-04-11 16:21:11,049 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,049 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 12 treesize of output 15 [2018-04-11 16:21:11,049 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,060 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,061 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,061 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:21:11,062 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,069 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,070 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:41 [2018-04-11 16:21:11,099 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 13 treesize of output 10 [2018-04-11 16:21:11,100 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 10 treesize of output 9 [2018-04-11 16:21:11,101 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,102 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,113 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:66 [2018-04-11 16:21:11,163 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-04-11 16:21:11,167 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 16 treesize of output 15 [2018-04-11 16:21:11,167 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,169 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,180 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. [2018-04-11 16:21:11,180 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:90, output treesize:66 [2018-04-11 16:21:11,191 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-11 16:21:11,194 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 14 treesize of output 13 [2018-04-11 16:21:11,194 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,206 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. [2018-04-11 16:21:11,206 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:83, output treesize:85 [2018-04-11 16:21:11,223 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,223 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,224 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 30 treesize of output 53 [2018-04-11 16:21:11,224 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,244 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,244 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,245 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,245 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 28 treesize of output 61 [2018-04-11 16:21:11,246 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,260 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. [2018-04-11 16:21:11,260 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:102, output treesize:109 [2018-04-11 16:21:11,306 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,308 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 78 treesize of output 79 [2018-04-11 16:21:11,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:21:11,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,317 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,334 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. [2018-04-11 16:21:11,334 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:122, output treesize:133 [2018-04-11 16:21:11,410 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,411 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,415 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 67 [2018-04-11 16:21:11,417 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 22 treesize of output 21 [2018-04-11 16:21:11,417 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,422 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,442 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. [2018-04-11 16:21:11,442 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:181, output treesize:151 [2018-04-11 16:21:11,466 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,467 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 65 [2018-04-11 16:21:11,472 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 20 treesize of output 19 [2018-04-11 16:21:11,472 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,477 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,495 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:11,495 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:174, output treesize:182 [2018-04-11 16:21:11,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 52 [2018-04-11 16:21:11,525 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,543 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,543 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,544 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,544 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 79 [2018-04-11 16:21:11,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:11,557 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:187, output treesize:142 [2018-04-11 16:21:11,610 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,611 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:11,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 135 treesize of output 125 [2018-04-11 16:21:11,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:21:11,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,626 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,641 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. [2018-04-11 16:21:11,641 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:155, output treesize:160 [2018-04-11 16:21:11,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 104 [2018-04-11 16:21:11,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 40 treesize of output 21 [2018-04-11 16:21:11,669 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 40 treesize of output 24 [2018-04-11 16:21:11,677 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:11,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 36 treesize of output 20 [2018-04-11 16:21:11,684 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:11,691 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:11,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:11,700 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:202, output treesize:55 [2018-04-11 16:21:11,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 54 [2018-04-11 16:21:11,887 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 [2018-04-11 16:21:11,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,905 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:11,905 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:66, output treesize:62 [2018-04-11 16:21:11,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 50 [2018-04-11 16:21:11,989 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 5 treesize of output 1 [2018-04-11 16:21:11,989 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:11,996 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 5 treesize of output 1 [2018-04-11 16:21:11,997 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:12,000 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:12,000 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 7 [2018-04-11 16:21:12,000 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:12,004 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 5 treesize of output 1 [2018-04-11 16:21:12,004 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:12,005 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:12,013 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:12,013 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 10 variables, input treesize:72, output treesize:3 [2018-04-11 16:21:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-04-11 16:21:12,064 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:21:12,064 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 16:21:12,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 16:21:12,065 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 16:21:12,065 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2018-04-11 16:21:12,065 INFO L87 Difference]: Start difference. First operand 386 states and 440 transitions. Second operand 26 states. [2018-04-11 16:21:14,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:21:14,749 INFO L93 Difference]: Finished difference Result 501 states and 561 transitions. [2018-04-11 16:21:14,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 16:21:14,749 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 87 [2018-04-11 16:21:14,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:21:14,750 INFO L225 Difference]: With dead ends: 501 [2018-04-11 16:21:14,750 INFO L226 Difference]: Without dead ends: 499 [2018-04-11 16:21:14,750 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 59 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=346, Invalid=2306, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 16:21:14,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2018-04-11 16:21:14,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 386. [2018-04-11 16:21:14,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2018-04-11 16:21:14,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 439 transitions. [2018-04-11 16:21:14,752 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 439 transitions. Word has length 87 [2018-04-11 16:21:14,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:21:14,752 INFO L459 AbstractCegarLoop]: Abstraction has 386 states and 439 transitions. [2018-04-11 16:21:14,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 16:21:14,752 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 439 transitions. [2018-04-11 16:21:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 16:21:14,753 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:21:14,753 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:21:14,753 INFO L408 AbstractCegarLoop]: === Iteration 53 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:21:14,753 INFO L82 PathProgramCache]: Analyzing trace with hash 547340804, now seen corresponding path program 4 times [2018-04-11 16:21:14,753 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:21:14,753 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:21:14,753 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:14,753 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:21:14,753 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:21:14,760 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:21:14,761 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:21:14,761 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:21:14,761 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:21:14,762 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 16:21:14,774 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 16:21:14,774 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:21:14,776 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:21:14,793 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 [2018-04-11 16:21:14,794 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 [2018-04-11 16:21:14,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,795 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,799 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-04-11 16:21:14,806 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:14,806 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:14,807 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 [2018-04-11 16:21:14,807 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,810 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,811 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:18 [2018-04-11 16:21:14,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:21:14,826 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 10 treesize of output 9 [2018-04-11 16:21:14,826 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,827 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,832 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:29 [2018-04-11 16:21:14,855 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:14,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-04-11 16:21:14,858 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 16 treesize of output 15 [2018-04-11 16:21:14,858 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,861 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,865 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,865 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:32 [2018-04-11 16:21:14,866 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:14,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-11 16:21:14,869 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 14 treesize of output 13 [2018-04-11 16:21:14,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,872 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,876 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:43, output treesize:45 [2018-04-11 16:21:14,887 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:14,888 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:14,888 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:21:14,888 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,894 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,894 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:56, output treesize:54 [2018-04-11 16:21:14,920 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:14,922 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 46 treesize of output 47 [2018-04-11 16:21:14,923 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 10 treesize of output 9 [2018-04-11 16:21:14,923 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,927 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,934 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:14,934 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:67, output treesize:66 [2018-04-11 16:21:14,994 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 108 [2018-04-11 16:21:15,007 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 79 treesize of output 78 [2018-04-11 16:21:15,007 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 75 [2018-04-11 16:21:15,041 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:21:15,056 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:15,072 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 2 xjuncts. [2018-04-11 16:21:15,072 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:97, output treesize:177 [2018-04-11 16:21:15,318 WARN L151 SmtUtils]: Spent 222ms on a formula simplification. DAG size of input: 46 DAG size of output 44 [2018-04-11 16:21:15,321 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 100 [2018-04-11 16:21:15,324 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 20 treesize of output 19 [2018-04-11 16:21:15,325 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,332 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,353 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 159 [2018-04-11 16:21:15,365 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 130 treesize of output 129 [2018-04-11 16:21:15,365 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,404 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,408 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 2 case distinctions, treesize of input 101 treesize of output 118 [2018-04-11 16:21:15,408 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-11 16:21:15,432 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:15,460 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-04-11 16:21:15,461 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:183, output treesize:294 [2018-04-11 16:21:15,518 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,519 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,519 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 108 treesize of output 108 [2018-04-11 16:21:15,520 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,548 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,549 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,549 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,550 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 100 treesize of output 116 [2018-04-11 16:21:15,551 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,578 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,602 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,603 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 100 treesize of output 116 [2018-04-11 16:21:15,603 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,628 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-04-11 16:21:15,629 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:309, output treesize:288 [2018-04-11 16:21:15,741 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:15,742 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 84 [2018-04-11 16:21:15,745 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 42 [2018-04-11 16:21:15,745 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,752 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,786 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:15,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 84 [2018-04-11 16:21:15,791 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,791 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 50 treesize of output 65 [2018-04-11 16:21:15,791 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,800 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,830 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:15,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 109 [2018-04-11 16:21:15,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 125 treesize of output 124 [2018-04-11 16:21:15,850 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,897 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,923 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-04-11 16:21:15,924 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:327, output treesize:261 [2018-04-11 16:21:15,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 61 [2018-04-11 16:21:15,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 28 treesize of output 13 [2018-04-11 16:21:15,980 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:15,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 28 treesize of output 16 [2018-04-11 16:21:15,986 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:15,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:16,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 95 [2018-04-11 16:21:16,010 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2018-04-11 16:21:16,010 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:16,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 46 [2018-04-11 16:21:16,029 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:16,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 85 treesize of output 73 [2018-04-11 16:21:16,048 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:16,066 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 73 treesize of output 58 [2018-04-11 16:21:16,066 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:16,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 58 treesize of output 42 [2018-04-11 16:21:16,083 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:16,099 INFO L267 ElimStorePlain]: Start of recursive call 5: 5 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:16,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 10 dim-0 vars, and 3 xjuncts. [2018-04-11 16:21:16,119 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:228, output treesize:116 [2018-04-11 16:21:16,183 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-04-11 16:21:16,184 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 [2018-04-11 16:21:16,184 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:16,188 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:16,193 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:16,193 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:38, output treesize:34 [2018-04-11 16:21:16,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 1 [2018-04-11 16:21:16,256 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:16,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2018-04-11 16:21:16,265 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 5 treesize of output 1 [2018-04-11 16:21:16,265 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:16,270 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 5 treesize of output 1 [2018-04-11 16:21:16,270 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:16,273 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 [2018-04-11 16:21:16,273 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:16,274 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:16,277 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:16,277 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:46, output treesize:3 [2018-04-11 16:21:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-04-11 16:21:16,318 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:21:16,318 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 16:21:16,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 16:21:16,318 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 16:21:16,318 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2018-04-11 16:21:16,318 INFO L87 Difference]: Start difference. First operand 386 states and 439 transitions. Second operand 26 states. [2018-04-11 16:21:17,040 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 76 DAG size of output 76 [2018-04-11 16:21:17,217 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 91 DAG size of output 91 [2018-04-11 16:21:18,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:21:18,083 INFO L93 Difference]: Finished difference Result 523 states and 586 transitions. [2018-04-11 16:21:18,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-11 16:21:18,084 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 87 [2018-04-11 16:21:18,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:21:18,085 INFO L225 Difference]: With dead ends: 523 [2018-04-11 16:21:18,085 INFO L226 Difference]: Without dead ends: 523 [2018-04-11 16:21:18,085 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=166, Invalid=1393, Unknown=1, NotChecked=0, Total=1560 [2018-04-11 16:21:18,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2018-04-11 16:21:18,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 403. [2018-04-11 16:21:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-04-11 16:21:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 458 transitions. [2018-04-11 16:21:18,087 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 458 transitions. Word has length 87 [2018-04-11 16:21:18,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:21:18,087 INFO L459 AbstractCegarLoop]: Abstraction has 403 states and 458 transitions. [2018-04-11 16:21:18,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 16:21:18,087 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 458 transitions. [2018-04-11 16:21:18,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 16:21:18,088 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:21:18,088 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:21:18,088 INFO L408 AbstractCegarLoop]: === Iteration 54 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:21:18,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1879779140, now seen corresponding path program 5 times [2018-04-11 16:21:18,088 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:21:18,088 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:21:18,088 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:18,088 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:21:18,088 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:21:18,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:21:18,097 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:21:18,097 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:21:18,097 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:21:18,098 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-11 16:21:18,114 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-04-11 16:21:18,114 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:21:18,116 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:21:18,121 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 13 treesize of output 10 [2018-04-11 16:21:18,122 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 10 treesize of output 9 [2018-04-11 16:21:18,122 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,123 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,126 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,126 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:12 [2018-04-11 16:21:18,141 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 [2018-04-11 16:21:18,142 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,143 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,143 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 16 treesize of output 33 [2018-04-11 16:21:18,143 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,146 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2018-04-11 16:21:18,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,158 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 [2018-04-11 16:21:18,159 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,162 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,162 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:27 [2018-04-11 16:21:18,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:21:18,179 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 10 treesize of output 9 [2018-04-11 16:21:18,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,185 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:38 [2018-04-11 16:21:18,215 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 37 [2018-04-11 16:21:18,218 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 16 treesize of output 15 [2018-04-11 16:21:18,218 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,222 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,227 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:41 [2018-04-11 16:21:18,229 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 35 [2018-04-11 16:21:18,232 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 14 treesize of output 13 [2018-04-11 16:21:18,232 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,235 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,241 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,241 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:57, output treesize:59 [2018-04-11 16:21:18,255 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,256 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,256 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,257 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,257 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 46 [2018-04-11 16:21:18,257 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,268 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:70, output treesize:78 [2018-04-11 16:21:18,305 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 57 treesize of output 58 [2018-04-11 16:21:18,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:21:18,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,315 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,325 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,325 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:91, output treesize:96 [2018-04-11 16:21:18,392 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,392 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 76 [2018-04-11 16:21:18,400 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 22 treesize of output 21 [2018-04-11 16:21:18,401 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,413 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,430 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. [2018-04-11 16:21:18,430 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:139, output treesize:126 [2018-04-11 16:21:18,449 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,450 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 74 [2018-04-11 16:21:18,456 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 20 treesize of output 19 [2018-04-11 16:21:18,456 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,464 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,477 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. [2018-04-11 16:21:18,477 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:137, output treesize:145 [2018-04-11 16:21:18,504 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,504 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,505 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,506 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 79 [2018-04-11 16:21:18,506 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,520 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. [2018-04-11 16:21:18,520 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:150, output treesize:142 [2018-04-11 16:21:18,577 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,577 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 135 treesize of output 125 [2018-04-11 16:21:18,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:21:18,584 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,606 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,621 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. [2018-04-11 16:21:18,621 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:155, output treesize:148 [2018-04-11 16:21:18,654 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 104 [2018-04-11 16:21:18,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 44 treesize of output 28 [2018-04-11 16:21:18,656 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:18,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 40 treesize of output 24 [2018-04-11 16:21:18,667 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:18,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 32 treesize of output 13 [2018-04-11 16:21:18,678 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,685 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:18,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:18,694 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:202, output treesize:55 [2018-04-11 16:21:18,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 63 [2018-04-11 16:21:18,755 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 [2018-04-11 16:21:18,755 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,763 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:18,773 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:66, output treesize:62 [2018-04-11 16:21:18,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 57 [2018-04-11 16:21:18,843 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 5 treesize of output 1 [2018-04-11 16:21:18,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,852 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 5 treesize of output 1 [2018-04-11 16:21:18,852 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,857 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,857 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,859 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:18,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 21 [2018-04-11 16:21:18,861 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 16:21:18,868 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 5 treesize of output 1 [2018-04-11 16:21:18,869 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:18,871 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:18,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:18,878 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:75, output treesize:15 [2018-04-11 16:21:18,945 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 55 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-04-11 16:21:18,945 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:21:18,945 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-11 16:21:18,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 16:21:18,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 16:21:18,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2018-04-11 16:21:18,946 INFO L87 Difference]: Start difference. First operand 403 states and 458 transitions. Second operand 28 states. [2018-04-11 16:21:20,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:21:20,473 INFO L93 Difference]: Finished difference Result 563 states and 629 transitions. [2018-04-11 16:21:20,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 16:21:20,473 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 87 [2018-04-11 16:21:20,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:21:20,474 INFO L225 Difference]: With dead ends: 563 [2018-04-11 16:21:20,474 INFO L226 Difference]: Without dead ends: 555 [2018-04-11 16:21:20,474 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=214, Invalid=1678, Unknown=0, NotChecked=0, Total=1892 [2018-04-11 16:21:20,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-04-11 16:21:20,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 408. [2018-04-11 16:21:20,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2018-04-11 16:21:20,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 464 transitions. [2018-04-11 16:21:20,476 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 464 transitions. Word has length 87 [2018-04-11 16:21:20,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:21:20,476 INFO L459 AbstractCegarLoop]: Abstraction has 408 states and 464 transitions. [2018-04-11 16:21:20,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 16:21:20,477 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 464 transitions. [2018-04-11 16:21:20,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 16:21:20,477 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:21:20,477 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:21:20,477 INFO L408 AbstractCegarLoop]: === Iteration 55 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:21:20,477 INFO L82 PathProgramCache]: Analyzing trace with hash -814702940, now seen corresponding path program 6 times [2018-04-11 16:21:20,477 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:21:20,477 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:21:20,477 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:20,478 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:21:20,478 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:21:20,484 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:21:20,487 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:21:20,487 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:21:20,487 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:21:20,488 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-11 16:21:20,502 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-04-11 16:21:20,502 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:21:20,504 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:21:20,512 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 [2018-04-11 16:21:20,512 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,517 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 [2018-04-11 16:21:20,517 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,519 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,520 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 16:21:20,536 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 [2018-04-11 16:21:20,537 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 [2018-04-11 16:21:20,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,538 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,543 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,543 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2018-04-11 16:21:20,552 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:20,553 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:20,553 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 [2018-04-11 16:21:20,553 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,560 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 12 treesize of output 15 [2018-04-11 16:21:20,561 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,566 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:31 [2018-04-11 16:21:20,587 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 13 treesize of output 10 [2018-04-11 16:21:20,588 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 10 treesize of output 9 [2018-04-11 16:21:20,588 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,589 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,598 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,598 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:56, output treesize:55 [2018-04-11 16:21:20,614 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 31 treesize of output 25 [2018-04-11 16:21:20,615 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 10 [2018-04-11 16:21:20,615 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,617 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,623 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. [2018-04-11 16:21:20,624 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:40 [2018-04-11 16:21:20,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-04-11 16:21:20,652 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 10 treesize of output 9 [2018-04-11 16:21:20,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,655 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,662 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. [2018-04-11 16:21:20,662 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:53, output treesize:40 [2018-04-11 16:21:20,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-04-11 16:21:20,675 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 [2018-04-11 16:21:20,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,685 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. [2018-04-11 16:21:20,685 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:47 [2018-04-11 16:21:20,701 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:20,701 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 24 treesize of output 31 [2018-04-11 16:21:20,702 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,716 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:20,717 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:20,717 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-11 16:21:20,717 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:20,729 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:64 [2018-04-11 16:21:20,772 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:21:20,773 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 10 treesize of output 9 [2018-04-11 16:21:20,773 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,774 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:20,786 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:74, output treesize:70 [2018-04-11 16:21:20,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 16:21:20,819 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 15 treesize of output 3 [2018-04-11 16:21:20,820 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,821 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:20,832 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:79, output treesize:64 [2018-04-11 16:21:20,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 28 treesize of output 59 [2018-04-11 16:21:20,899 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:20,900 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 34 treesize of output 41 [2018-04-11 16:21:20,900 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,962 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 25 treesize of output 24 [2018-04-11 16:21:20,962 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:20,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2018-04-11 16:21:20,986 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-11 16:21:20,997 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:21,016 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:21,016 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:77, output treesize:122 [2018-04-11 16:21:21,067 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:21,067 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 71 treesize of output 77 [2018-04-11 16:21:21,068 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 18 treesize of output 16 [2018-04-11 16:21:21,068 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,082 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,118 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:21,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 109 [2018-04-11 16:21:21,133 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-11 16:21:21,133 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,333 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:21,334 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:21,334 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 73 treesize of output 70 [2018-04-11 16:21:21,334 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,409 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 72 treesize of output 71 [2018-04-11 16:21:21,410 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,450 INFO L267 ElimStorePlain]: Start of recursive call 4: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:21,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 9 dim-0 vars, and 3 xjuncts. [2018-04-11 16:21:21,497 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:150, output treesize:196 [2018-04-11 16:21:21,600 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:21,601 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:21,601 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:21,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 80 [2018-04-11 16:21:21,602 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 69 treesize of output 54 [2018-04-11 16:21:21,632 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 58 [2018-04-11 16:21:21,657 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,679 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:21,679 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:21,680 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:21,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 50 treesize of output 54 [2018-04-11 16:21:21,680 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 4 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:21,700 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 11 variables, input treesize:146, output treesize:78 [2018-04-11 16:21:21,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2018-04-11 16:21:21,790 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 10 treesize of output 9 [2018-04-11 16:21:21,790 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,797 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,817 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 44 treesize of output 41 [2018-04-11 16:21:21,818 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 10 treesize of output 9 [2018-04-11 16:21:21,818 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,825 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:21,841 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:93, output treesize:79 [2018-04-11 16:21:21,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 43 [2018-04-11 16:21:21,880 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 16 treesize of output 4 [2018-04-11 16:21:21,880 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,886 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,900 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 35 [2018-04-11 16:21:21,901 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 12 treesize of output 4 [2018-04-11 16:21:21,901 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,906 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:21,918 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:21,918 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:87, output treesize:61 [2018-04-11 16:21:22,012 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,014 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 61 [2018-04-11 16:21:22,023 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 52 treesize of output 51 [2018-04-11 16:21:22,023 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,055 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,058 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 2 case distinctions, treesize of input 33 treesize of output 38 [2018-04-11 16:21:22,058 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 16:21:22,075 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:22,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 55 [2018-04-11 16:21:22,111 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 44 treesize of output 43 [2018-04-11 16:21:22,111 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,134 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,137 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 2 case distinctions, treesize of input 37 treesize of output 42 [2018-04-11 16:21:22,137 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-11 16:21:22,155 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:22,188 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-2 vars, End of recursive call: 14 dim-0 vars, and 4 xjuncts. [2018-04-11 16:21:22,188 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 11 variables, input treesize:83, output treesize:127 [2018-04-11 16:21:22,315 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 50 treesize of output 45 [2018-04-11 16:21:22,315 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,341 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 43 treesize of output 38 [2018-04-11 16:21:22,341 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,369 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 39 treesize of output 34 [2018-04-11 16:21:22,369 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,402 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,403 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,403 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2018-04-11 16:21:22,408 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 15 [2018-04-11 16:21:22,408 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,415 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:22,415 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 7 [2018-04-11 16:21:22,415 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,420 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2018-04-11 16:21:22,444 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:22,444 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 7 [2018-04-11 16:21:22,444 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,451 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 5 treesize of output 1 [2018-04-11 16:21:22,451 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,454 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,471 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,472 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 53 [2018-04-11 16:21:22,479 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 54 [2018-04-11 16:21:22,480 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:22,503 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 40 treesize of output 35 [2018-04-11 16:21:22,503 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,522 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,522 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:22,522 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 41 treesize of output 35 [2018-04-11 16:21:22,522 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,539 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:22,539 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 35 treesize of output 31 [2018-04-11 16:21:22,539 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,555 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:22,556 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 35 treesize of output 31 [2018-04-11 16:21:22,556 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:22,568 INFO L267 ElimStorePlain]: Start of recursive call 11: 5 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:22,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 15 dim-0 vars, 3 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 16:21:22,590 INFO L202 ElimStorePlain]: Needed 16 recursive calls to eliminate 21 variables, input treesize:133, output treesize:7 [2018-04-11 16:21:22,645 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-04-11 16:21:22,645 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:21:22,645 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-11 16:21:22,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 16:21:22,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 16:21:22,645 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2018-04-11 16:21:22,645 INFO L87 Difference]: Start difference. First operand 408 states and 464 transitions. Second operand 27 states. [2018-04-11 16:21:23,933 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 93 DAG size of output 66 [2018-04-11 16:21:24,120 WARN L151 SmtUtils]: Spent 136ms on a formula simplification. DAG size of input: 99 DAG size of output 69 [2018-04-11 16:21:24,354 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 109 DAG size of output 76 [2018-04-11 16:21:24,590 WARN L151 SmtUtils]: Spent 158ms on a formula simplification. DAG size of input: 126 DAG size of output 79 [2018-04-11 16:21:25,413 WARN L151 SmtUtils]: Spent 158ms on a formula simplification. DAG size of input: 93 DAG size of output 88 [2018-04-11 16:21:25,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:21:25,732 INFO L93 Difference]: Finished difference Result 534 states and 600 transitions. [2018-04-11 16:21:25,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-11 16:21:25,758 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 87 [2018-04-11 16:21:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:21:25,758 INFO L225 Difference]: With dead ends: 534 [2018-04-11 16:21:25,759 INFO L226 Difference]: Without dead ends: 532 [2018-04-11 16:21:25,759 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=315, Invalid=2337, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 16:21:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2018-04-11 16:21:25,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 408. [2018-04-11 16:21:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2018-04-11 16:21:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 464 transitions. [2018-04-11 16:21:25,761 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 464 transitions. Word has length 87 [2018-04-11 16:21:25,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:21:25,761 INFO L459 AbstractCegarLoop]: Abstraction has 408 states and 464 transitions. [2018-04-11 16:21:25,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 16:21:25,761 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 464 transitions. [2018-04-11 16:21:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 16:21:25,761 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:21:25,761 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-11 16:21:25,761 INFO L408 AbstractCegarLoop]: === Iteration 56 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:21:25,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1831801140, now seen corresponding path program 1 times [2018-04-11 16:21:25,762 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:21:25,762 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:21:25,762 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:25,762 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:21:25,762 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:21:25,768 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:21:25,769 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:21:25,769 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:21:25,769 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:21:25,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:21:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:21:25,788 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:21:25,804 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 [2018-04-11 16:21:25,805 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,809 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:20 [2018-04-11 16:21:25,858 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:25,859 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 12 treesize of output 15 [2018-04-11 16:21:25,859 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,870 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:42 [2018-04-11 16:21:25,911 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:25,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2018-04-11 16:21:25,912 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,931 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 13 treesize of output 10 [2018-04-11 16:21:25,933 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 10 treesize of output 9 [2018-04-11 16:21:25,933 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,935 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,949 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 13 treesize of output 10 [2018-04-11 16:21:25,950 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 10 treesize of output 9 [2018-04-11 16:21:25,950 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,951 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,960 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:80, output treesize:53 [2018-04-11 16:21:25,977 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 19 treesize of output 15 [2018-04-11 16:21:25,978 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-04-11 16:21:25,979 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:25,986 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. [2018-04-11 16:21:25,986 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:68, output treesize:53 [2018-04-11 16:21:26,111 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,113 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,113 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 72 treesize of output 84 [2018-04-11 16:21:26,114 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 22 treesize of output 18 [2018-04-11 16:21:26,114 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:26,122 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:26,133 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. [2018-04-11 16:21:26,133 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:94, output treesize:88 [2018-04-11 16:21:26,217 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,218 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,219 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,219 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 134 [2018-04-11 16:21:26,225 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 22 treesize of output 21 [2018-04-11 16:21:26,225 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:26,233 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:26,243 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:26,243 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:128, output treesize:112 [2018-04-11 16:21:26,502 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:26,503 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,503 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,504 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,505 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:26,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 120 [2018-04-11 16:21:26,509 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 16:21:26,513 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 76 [2018-04-11 16:21:26,513 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:26,533 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 47 [2018-04-11 16:21:26,534 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:26,548 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 7 treesize of output 1 [2018-04-11 16:21:26,548 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:26,558 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:26,574 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:26,575 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:131, output treesize:90 [2018-04-11 16:21:26,795 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int) (v_subst_40 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_40 1))) (let ((.cse1 (store .cse0 main_~p~0.base 1))) (and (= 0 (select .cse0 main_~p~0.base)) (= (select .cse1 c_main_~t~0.base) 0) (= 0 (select |c_old(#valid)| v_subst_40)) (= |c_#valid| (store (store (store .cse1 c_main_~t~0.base 1) v_subst_40 0) main_~p~0.base 0)))))) is different from true [2018-04-11 16:21:26,799 WARN L1033 $PredicateComparison]: unable to prove that (exists ((v_subst_40 Int) (v_subst_41 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_40 1))) (let ((.cse1 (store .cse0 v_subst_41 1))) (and (= 0 (select .cse0 v_subst_41)) (= |c_#valid| (store (store (store .cse1 c_main_~p~0.base 1) v_subst_40 0) v_subst_41 0)) (= 0 (select |c_old(#valid)| v_subst_40)) (= 0 (select .cse1 c_main_~p~0.base)))))) is different from true [2018-04-11 16:21:26,806 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int) (v_subst_40 Int) (v_subst_41 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_40 1))) (let ((.cse1 (store .cse0 v_subst_41 1))) (and (= 0 (select .cse0 v_subst_41)) (= |c_#valid| (store (store (store (store .cse1 main_~p~0.base 1) v_subst_40 0) v_subst_41 0) main_~p~0.base 0)) (= 0 (select |c_old(#valid)| v_subst_40)) (= 0 (select .cse1 main_~p~0.base)))))) is different from true [2018-04-11 16:21:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 3 trivial. 7 not checked. [2018-04-11 16:21:26,842 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:21:26,843 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-11 16:21:26,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 16:21:26,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 16:21:26,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=630, Unknown=22, NotChecked=156, Total=870 [2018-04-11 16:21:26,843 INFO L87 Difference]: Start difference. First operand 408 states and 464 transitions. Second operand 30 states. [2018-04-11 16:21:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:21:29,270 INFO L93 Difference]: Finished difference Result 416 states and 472 transitions. [2018-04-11 16:21:29,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-11 16:21:29,270 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 87 [2018-04-11 16:21:29,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:21:29,271 INFO L225 Difference]: With dead ends: 416 [2018-04-11 16:21:29,271 INFO L226 Difference]: Without dead ends: 411 [2018-04-11 16:21:29,271 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=156, Invalid=1702, Unknown=46, NotChecked=258, Total=2162 [2018-04-11 16:21:29,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2018-04-11 16:21:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 399. [2018-04-11 16:21:29,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2018-04-11 16:21:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 455 transitions. [2018-04-11 16:21:29,274 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 455 transitions. Word has length 87 [2018-04-11 16:21:29,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:21:29,274 INFO L459 AbstractCegarLoop]: Abstraction has 399 states and 455 transitions. [2018-04-11 16:21:29,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 16:21:29,274 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 455 transitions. [2018-04-11 16:21:29,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 16:21:29,274 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:21:29,274 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:21:29,275 INFO L408 AbstractCegarLoop]: === Iteration 57 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:21:29,275 INFO L82 PathProgramCache]: Analyzing trace with hash -297756156, now seen corresponding path program 7 times [2018-04-11 16:21:29,275 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:21:29,275 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:21:29,275 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:29,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:21:29,275 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:21:29,282 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:21:29,288 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:21:29,288 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:21:29,289 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:21:29,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:21:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:21:29,322 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:21:29,335 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 [2018-04-11 16:21:29,335 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,341 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,341 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,342 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 [2018-04-11 16:21:29,342 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,347 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,347 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:26 [2018-04-11 16:21:29,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-04-11 16:21:29,371 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 10 treesize of output 9 [2018-04-11 16:21:29,372 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,372 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,378 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:44 [2018-04-11 16:21:29,424 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,424 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 16 treesize of output 23 [2018-04-11 16:21:29,425 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,435 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,435 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,436 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,436 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 26 treesize of output 50 [2018-04-11 16:21:29,436 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,445 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:59, output treesize:64 [2018-04-11 16:21:29,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 15 [2018-04-11 16:21:29,477 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,488 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,489 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 41 [2018-04-11 16:21:29,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 22 treesize of output 18 [2018-04-11 16:21:29,491 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,494 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,501 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. [2018-04-11 16:21:29,501 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:89, output treesize:55 [2018-04-11 16:21:29,561 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,562 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,562 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,563 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,563 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 67 [2018-04-11 16:21:29,564 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,572 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. [2018-04-11 16:21:29,572 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:89, output treesize:81 [2018-04-11 16:21:29,609 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,610 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,610 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,613 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,614 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 97 [2018-04-11 16:21:29,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 10 treesize of output 9 [2018-04-11 16:21:29,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,624 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,637 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 20 [2018-04-11 16:21:29,638 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 20 treesize of output 19 [2018-04-11 16:21:29,638 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,639 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,649 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. [2018-04-11 16:21:29,649 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:109, output treesize:110 [2018-04-11 16:21:29,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 39 treesize of output 15 [2018-04-11 16:21:29,675 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 15 treesize of output 3 [2018-04-11 16:21:29,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,676 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,688 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:29,688 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:185, output treesize:150 [2018-04-11 16:21:29,740 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,742 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:29,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 125 [2018-04-11 16:21:29,748 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 24 treesize of output 23 [2018-04-11 16:21:29,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,757 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,766 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 16:21:29,766 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:171, output treesize:151 [2018-04-11 16:21:29,893 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 179 treesize of output 177 [2018-04-11 16:21:29,894 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 7 treesize of output 1 [2018-04-11 16:21:29,895 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,930 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 179 treesize of output 175 [2018-04-11 16:21:29,931 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 16 treesize of output 4 [2018-04-11 16:21:29,931 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,941 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:29,966 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:29,966 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:359, output treesize:335 [2018-04-11 16:21:30,129 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,129 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 172 treesize of output 201 [2018-04-11 16:21:30,129 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,162 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,162 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 168 treesize of output 197 [2018-04-11 16:21:30,162 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,188 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:30,188 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:341, output treesize:291 [2018-04-11 16:21:30,304 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,305 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,305 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,306 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,307 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 134 [2018-04-11 16:21:30,321 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 57 [2018-04-11 16:21:30,322 INFO L267 ElimStorePlain]: Start of recursive call 3: 10 dim-0 vars, End of recursive call: 10 dim-0 vars, and 7 xjuncts. [2018-04-11 16:21:30,345 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 5 treesize of output 1 [2018-04-11 16:21:30,345 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,359 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 1 case distinctions, treesize of input 37 treesize of output 30 [2018-04-11 16:21:30,359 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:30,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 42 treesize of output 30 [2018-04-11 16:21:30,374 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 34 treesize of output 22 [2018-04-11 16:21:30,375 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,384 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-11 16:21:30,415 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,416 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,420 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 128 [2018-04-11 16:21:30,422 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,429 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 62 [2018-04-11 16:21:30,430 INFO L267 ElimStorePlain]: Start of recursive call 9: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-04-11 16:21:30,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 58 treesize of output 46 [2018-04-11 16:21:30,466 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 56 treesize of output 44 [2018-04-11 16:21:30,468 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 50 treesize of output 38 [2018-04-11 16:21:30,469 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 44 treesize of output 32 [2018-04-11 16:21:30,470 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,494 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 23 treesize of output 18 [2018-04-11 16:21:30,494 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,495 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2018-04-11 16:21:30,496 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2018-04-11 16:21:30,499 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-04-11 16:21:30,503 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 1 case distinctions, treesize of input 35 treesize of output 36 [2018-04-11 16:21:30,503 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-04-11 16:21:30,528 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-04-11 16:21:30,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 10 dim-0 vars, and 6 xjuncts. [2018-04-11 16:21:30,573 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:309, output treesize:168 [2018-04-11 16:21:30,739 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,739 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:30,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 36 [2018-04-11 16:21:30,741 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:30,747 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. [2018-04-11 16:21:30,747 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:24 [2018-04-11 16:21:30,853 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:21:30,853 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:21:30,853 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-04-11 16:21:30,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-11 16:21:30,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-11 16:21:30,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1173, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 16:21:30,854 INFO L87 Difference]: Start difference. First operand 399 states and 455 transitions. Second operand 36 states. [2018-04-11 16:21:32,994 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 150 DAG size of output 93 [2018-04-11 16:21:33,383 WARN L151 SmtUtils]: Spent 181ms on a formula simplification. DAG size of input: 167 DAG size of output 146 [2018-04-11 16:21:33,556 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 134 DAG size of output 85 [2018-04-11 16:21:34,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:21:34,115 INFO L93 Difference]: Finished difference Result 470 states and 520 transitions. [2018-04-11 16:21:34,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-11 16:21:34,115 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 87 [2018-04-11 16:21:34,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:21:34,116 INFO L225 Difference]: With dead ends: 470 [2018-04-11 16:21:34,116 INFO L226 Difference]: Without dead ends: 470 [2018-04-11 16:21:34,116 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1073 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=460, Invalid=4510, Unknown=0, NotChecked=0, Total=4970 [2018-04-11 16:21:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2018-04-11 16:21:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 419. [2018-04-11 16:21:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2018-04-11 16:21:34,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 476 transitions. [2018-04-11 16:21:34,118 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 476 transitions. Word has length 87 [2018-04-11 16:21:34,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:21:34,118 INFO L459 AbstractCegarLoop]: Abstraction has 419 states and 476 transitions. [2018-04-11 16:21:34,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-11 16:21:34,119 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 476 transitions. [2018-04-11 16:21:34,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 16:21:34,119 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:21:34,119 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:21:34,119 INFO L408 AbstractCegarLoop]: === Iteration 58 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr34AssertViolationMEMORY_FREE, mainErr36EnsuresViolationMEMORY_LEAK, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-11 16:21:34,119 INFO L82 PathProgramCache]: Analyzing trace with hash -297756155, now seen corresponding path program 2 times [2018-04-11 16:21:34,119 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:21:34,119 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:21:34,120 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:34,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:21:34,120 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:21:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:21:34,126 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:21:34,128 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 16:21:34,128 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:21:34,128 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:21:34,129 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:21:34,155 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:21:34,155 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:21:34,158 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:21:34,164 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 [2018-04-11 16:21:34,164 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,167 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 16:21:34,183 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 [2018-04-11 16:21:34,184 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 [2018-04-11 16:21:34,184 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,185 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,191 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-11 16:21:34,200 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:34,200 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:34,200 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 [2018-04-11 16:21:34,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,205 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-11 16:21:34,222 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 13 treesize of output 10 [2018-04-11 16:21:34,223 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 10 treesize of output 9 [2018-04-11 16:21:34,223 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,224 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,231 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,231 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:35 [2018-04-11 16:21:34,266 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:34,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 28 [2018-04-11 16:21:34,270 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 16 treesize of output 15 [2018-04-11 16:21:34,270 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,273 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,281 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. [2018-04-11 16:21:34,281 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:59, output treesize:46 [2018-04-11 16:21:34,298 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:34,300 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-11 16:21:34,302 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 14 treesize of output 13 [2018-04-11 16:21:34,302 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,314 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. [2018-04-11 16:21:34,315 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2018-04-11 16:21:34,333 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:34,333 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:34,334 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:34,334 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:21:34,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 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 46 [2018-04-11 16:21:34,335 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:21:34,353 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. [2018-04-11 16:21:34,353 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:78 Received shutdown request... [2018-04-11 16:21:34,370 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-04-11 16:21:34,371 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-11 16:21:34,373 WARN L197 ceAbstractionStarter]: Timeout [2018-04-11 16:21:34,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 04:21:34 BoogieIcfgContainer [2018-04-11 16:21:34,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 16:21:34,374 INFO L168 Benchmark]: Toolchain (without parser) took 183582.60 ms. Allocated memory was 402.7 MB in the beginning and 670.6 MB in the end (delta: 267.9 MB). Free memory was 334.1 MB in the beginning and 360.2 MB in the end (delta: -26.1 MB). Peak memory consumption was 241.8 MB. Max. memory is 5.3 GB. [2018-04-11 16:21:34,376 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 402.7 MB. Free memory is still 360.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 16:21:34,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.86 ms. Allocated memory is still 402.7 MB. Free memory was 333.5 MB in the beginning and 307.0 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 5.3 GB. [2018-04-11 16:21:34,376 INFO L168 Benchmark]: Boogie Preprocessor took 30.62 ms. Allocated memory is still 402.7 MB. Free memory was 307.0 MB in the beginning and 304.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 16:21:34,376 INFO L168 Benchmark]: RCFGBuilder took 422.92 ms. Allocated memory was 402.7 MB in the beginning and 590.9 MB in the end (delta: 188.2 MB). Free memory was 304.3 MB in the beginning and 518.2 MB in the end (delta: -213.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. [2018-04-11 16:21:34,376 INFO L168 Benchmark]: TraceAbstraction took 182898.48 ms. Allocated memory was 590.9 MB in the beginning and 670.6 MB in the end (delta: 79.7 MB). Free memory was 518.2 MB in the beginning and 360.2 MB in the end (delta: 158.0 MB). Peak memory consumption was 237.7 MB. Max. memory is 5.3 GB. [2018-04-11 16:21:34,377 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 402.7 MB. Free memory is still 360.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 227.86 ms. Allocated memory is still 402.7 MB. Free memory was 333.5 MB in the beginning and 307.0 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.62 ms. Allocated memory is still 402.7 MB. Free memory was 307.0 MB in the beginning and 304.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 422.92 ms. Allocated memory was 402.7 MB in the beginning and 590.9 MB in the end (delta: 188.2 MB). Free memory was 304.3 MB in the beginning and 518.2 MB in the end (delta: -213.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 182898.48 ms. Allocated memory was 590.9 MB in the beginning and 670.6 MB in the end (delta: 79.7 MB). Free memory was 518.2 MB in the beginning and 360.2 MB in the end (delta: 158.0 MB). Peak memory consumption was 237.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 637]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 637). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 646]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 664]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 664). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 661]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 661). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 651]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 651). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 655]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 655). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 652]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 652). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 665]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 665). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 664]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 664). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 636]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 636). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 669]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 669). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 647]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 647). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 650]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 650). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 658]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 658). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 636]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 636). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 646]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 639]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 639). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 651]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 651). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 655]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 655). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 661]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 661). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 650]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 650). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 643). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 669]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 669). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 627]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 627). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 665]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 665). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 639]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 639). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 652]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 652). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 644]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 658]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 658). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 643). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 644]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 666]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 666). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 637]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 637). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 647]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 647). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - TimeoutResultAtElement [Line: 666]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 666). Cancelled while BasicCegarLoop was analyzing trace of length 88 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 41. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 103 locations, 37 error locations. TIMEOUT Result, 182.8s OverallTime, 58 OverallIterations, 4 TraceHistogramMax, 131.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4283 SDtfs, 23834 SDslu, 47037 SDs, 0 SdLazy, 67251 SolverSat, 3072 SolverUnsat, 62 SolverUnknown, 0 SolverNotchecked, 67.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4546 GetRequests, 2223 SyntacticMatches, 63 SemanticMatches, 2260 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 21663 ImplicationChecksByTransitivity, 82.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=419occurred in iteration=57, 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: 0.1s AutomataMinimizationTime, 57 MinimizatonAttempts, 3838 StatesRemovedByMinimization, 55 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 49.1s InterpolantComputationTime, 6973 NumberOfCodeBlocks, 6973 NumberOfCodeBlocksAsserted, 152 NumberOfCheckSat, 3511 ConstructedInterpolants, 1504 QuantifiedInterpolants, 14778884 SizeOfPredicates, 1089 NumberOfNonLiveVariables, 13465 ConjunctsInSsa, 2810 ConjunctsInUnsatCore, 57 InterpolantComputations, 8 PerfectInterpolantSequences, 231/1859 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list-ext_flag_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_16-21-34-382.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list-ext_flag_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_16-21-34-382.csv Completed graceful shutdown