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_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-13 07:54:16,725 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 07:54:16,726 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 07:54:16,738 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-13 07:54:16,738 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-13 07:54:16,739 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-13 07:54:16,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-13 07:54:16,741 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-13 07:54:16,743 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-13 07:54:16,743 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-13 07:54:16,744 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-13 07:54:16,744 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 07:54:16,745 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 07:54:16,745 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 07:54:16,746 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 07:54:16,748 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 07:54:16,749 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 07:54:16,751 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 07:54:16,752 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 07:54:16,753 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 07:54:16,754 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-13 07:54:16,755 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-13 07:54:16,755 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-13 07:54:16,756 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-13 07:54:16,756 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-13 07:54:16,757 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-13 07:54:16,757 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-13 07:54:16,758 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-13 07:54:16,758 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-13 07:54:16,759 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-13 07:54:16,759 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-13 07:54:16,759 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-13 07:54:16,769 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 07:54:16,770 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 07:54:16,771 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 07:54:16,771 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 07:54:16,771 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 07:54:16,771 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 07:54:16,771 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 07:54:16,771 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 07:54:16,772 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 07:54:16,772 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 07:54:16,772 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 07:54:16,772 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 07:54:16,772 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 07:54:16,772 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 07:54:16,772 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 07:54:16,772 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 07:54:16,773 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 07:54:16,773 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 07:54:16,773 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 07:54:16,773 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 07:54:16,773 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 07:54:16,773 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-13 07:54:16,773 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-13 07:54:16,774 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-13 07:54:16,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 07:54:16,812 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 07:54:16,816 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 07:54:16,817 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 07:54:16,817 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 07:54:16,818 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_1_true-valid-memsafety.i [2018-04-13 07:54:17,094 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4dbdcc6d6 [2018-04-13 07:54:17,246 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 07:54:17,246 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 07:54:17,247 INFO L168 CDTParser]: Scanning list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,254 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 07:54:17,255 INFO L215 ultiparseSymbolTable]: [2018-04-13 07:54:17,255 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 07:54:17,255 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,255 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_flist_ext___true_valid_memsafety_i__exit ('exit') in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,255 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 07:54:17,255 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____time_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,255 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__int8_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____timer_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__fsfilcnt_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__size_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____intptr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__u_int64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__caddr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__u_int in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____mode_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____fsfilcnt_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,256 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_mutexattr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__u_short in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__fsblkcnt_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____int8_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__gid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____blkcnt64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____int32_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__key_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____u_short in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__int32_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____uint64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,257 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__fd_set in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____ssize_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__timer_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____dev_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__mode_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____sig_atomic_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____nlink_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____u_char in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____caddr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__blksize_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_attr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____off64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,258 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____id_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____fd_mask in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_once_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____uint32_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____fsblkcnt64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____clockid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__u_char in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__div_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____u_long in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,259 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____suseconds_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_spinlock_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__blkcnt_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__quad_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__off_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____int16_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__u_int16_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_cond_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__wchar_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____rlim_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__List in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,260 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____socklen_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__lldiv_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__uid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__int16_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____pthread_list_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__u_long in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____ino64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_barrier_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____gid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____off_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____quad_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,261 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____fsid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__ushort in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____u_quad_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____sigset_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__int64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____WAIT_STATUS in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____pid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____uint16_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____ino_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____daddr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__clockid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,262 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__fsid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__ulong in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_rwlockattr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____clock_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____loff_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__suseconds_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__fd_mask in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__clock_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__u_int8_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__daddr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__u_int32_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____blksize_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_key_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__nlink_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,263 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____uid_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__u_quad_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__ssize_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____int64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__loff_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__id_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__uint in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_condattr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__sigset_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____qaddr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____rlim64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____uint8_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__time_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__dev_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____swblk_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____blkcnt_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__ldiv_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____key_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____fsfilcnt64_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_mutex_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,264 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__ino_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_rwlock_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____u_int in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____useconds_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i____fsblkcnt_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__register_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,265 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_flist_ext___true_valid_memsafety_i__pthread_barrierattr_t in list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:17,277 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG4dbdcc6d6 [2018-04-13 07:54:17,281 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 07:54:17,282 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 07:54:17,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 07:54:17,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 07:54:17,286 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 07:54:17,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:54:17" (1/1) ... [2018-04-13 07:54:17,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44060268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17, skipping insertion in model container [2018-04-13 07:54:17,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:54:17" (1/1) ... [2018-04-13 07:54:17,299 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 07:54:17,317 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 07:54:17,444 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 07:54:17,480 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 07:54:17,486 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 113 non ball SCCs. Number of states in SCCs 113. [2018-04-13 07:54:17,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17 WrapperNode [2018-04-13 07:54:17,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 07:54:17,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 07:54:17,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 07:54:17,516 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 07:54:17,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17" (1/1) ... [2018-04-13 07:54:17,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17" (1/1) ... [2018-04-13 07:54:17,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17" (1/1) ... [2018-04-13 07:54:17,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17" (1/1) ... [2018-04-13 07:54:17,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17" (1/1) ... [2018-04-13 07:54:17,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17" (1/1) ... [2018-04-13 07:54:17,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17" (1/1) ... [2018-04-13 07:54:17,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 07:54:17,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 07:54:17,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 07:54:17,563 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 07:54:17,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 07:54:17,648 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 07:54:17,648 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 07:54:17,648 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_flist_ext___true_valid_memsafety_i__exit [2018-04-13 07:54:17,648 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 07:54:17,648 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-13 07:54:17,648 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-13 07:54:17,649 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-13 07:54:17,650 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-13 07:54:17,651 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-13 07:54:17,652 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-13 07:54:17,653 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-13 07:54:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-13 07:54:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-13 07:54:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-13 07:54:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-13 07:54:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-13 07:54:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-13 07:54:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-13 07:54:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-13 07:54:17,654 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_flist_ext___true_valid_memsafety_i__exit [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-13 07:54:17,655 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-13 07:54:17,656 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-13 07:54:17,657 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 07:54:17,658 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-13 07:54:17,997 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 07:54:17,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:54:17 BoogieIcfgContainer [2018-04-13 07:54:17,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 07:54:17,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 07:54:17,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 07:54:18,000 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 07:54:18,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:54:17" (1/3) ... [2018-04-13 07:54:18,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420bdeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:54:18, skipping insertion in model container [2018-04-13 07:54:18,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:54:17" (2/3) ... [2018-04-13 07:54:18,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420bdeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:54:18, skipping insertion in model container [2018-04-13 07:54:18,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:54:17" (3/3) ... [2018-04-13 07:54:18,003 INFO L107 eAbstractionObserver]: Analyzing ICFG list-ext_1_true-valid-memsafety.i [2018-04-13 07:54:18,008 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-13 07:54:18,013 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 35 error locations. [2018-04-13 07:54:18,048 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 07:54:18,049 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 07:54:18,049 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 07:54:18,049 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-13 07:54:18,049 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-13 07:54:18,049 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 07:54:18,049 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 07:54:18,049 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 07:54:18,049 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 07:54:18,050 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 07:54:18,062 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2018-04-13 07:54:18,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-13 07:54:18,071 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:18,071 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:54:18,071 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:18,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1152381868, now seen corresponding path program 1 times [2018-04-13 07:54:18,077 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:18,078 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:18,115 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:18,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:18,115 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:18,150 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:18,178 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:18,178 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-13 07:54:18,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-13 07:54:18,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-13 07:54:18,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-13 07:54:18,194 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 2 states. [2018-04-13 07:54:18,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:18,213 INFO L93 Difference]: Finished difference Result 106 states and 114 transitions. [2018-04-13 07:54:18,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-13 07:54:18,214 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-04-13 07:54:18,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:18,221 INFO L225 Difference]: With dead ends: 106 [2018-04-13 07:54:18,221 INFO L226 Difference]: Without dead ends: 97 [2018-04-13 07:54:18,223 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 [2018-04-13 07:54:18,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-04-13 07:54:18,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-04-13 07:54:18,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-04-13 07:54:18,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 103 transitions. [2018-04-13 07:54:18,250 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 103 transitions. Word has length 13 [2018-04-13 07:54:18,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:18,250 INFO L459 AbstractCegarLoop]: Abstraction has 97 states and 103 transitions. [2018-04-13 07:54:18,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-13 07:54:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 103 transitions. [2018-04-13 07:54:18,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-13 07:54:18,251 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:18,251 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:54:18,251 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:18,251 INFO L82 PathProgramCache]: Analyzing trace with hash 629035797, now seen corresponding path program 1 times [2018-04-13 07:54:18,251 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:18,251 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:18,252 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:18,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:18,252 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:18,267 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:18,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:18,316 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:18,316 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 07:54:18,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 07:54:18,317 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 07:54:18,317 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-13 07:54:18,317 INFO L87 Difference]: Start difference. First operand 97 states and 103 transitions. Second operand 5 states. [2018-04-13 07:54:18,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:18,570 INFO L93 Difference]: Finished difference Result 167 states and 179 transitions. [2018-04-13 07:54:18,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 07:54:18,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-13 07:54:18,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:18,572 INFO L225 Difference]: With dead ends: 167 [2018-04-13 07:54:18,572 INFO L226 Difference]: Without dead ends: 167 [2018-04-13 07:54:18,573 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-13 07:54:18,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-04-13 07:54:18,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 135. [2018-04-13 07:54:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-04-13 07:54:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 163 transitions. [2018-04-13 07:54:18,582 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 163 transitions. Word has length 15 [2018-04-13 07:54:18,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:18,582 INFO L459 AbstractCegarLoop]: Abstraction has 135 states and 163 transitions. [2018-04-13 07:54:18,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 07:54:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 163 transitions. [2018-04-13 07:54:18,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-13 07:54:18,583 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:18,583 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:54:18,583 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:18,583 INFO L82 PathProgramCache]: Analyzing trace with hash 629035796, now seen corresponding path program 1 times [2018-04-13 07:54:18,583 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:18,583 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:18,584 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:18,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:18,584 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:18,593 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:18,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:18,631 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:18,631 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 07:54:18,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 07:54:18,632 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 07:54:18,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-13 07:54:18,632 INFO L87 Difference]: Start difference. First operand 135 states and 163 transitions. Second operand 5 states. [2018-04-13 07:54:18,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:18,735 INFO L93 Difference]: Finished difference Result 131 states and 144 transitions. [2018-04-13 07:54:18,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 07:54:18,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-04-13 07:54:18,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:18,736 INFO L225 Difference]: With dead ends: 131 [2018-04-13 07:54:18,736 INFO L226 Difference]: Without dead ends: 131 [2018-04-13 07:54:18,736 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-13 07:54:18,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-04-13 07:54:18,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 126. [2018-04-13 07:54:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-04-13 07:54:18,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 140 transitions. [2018-04-13 07:54:18,741 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 140 transitions. Word has length 15 [2018-04-13 07:54:18,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:18,741 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 140 transitions. [2018-04-13 07:54:18,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 07:54:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 140 transitions. [2018-04-13 07:54:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-13 07:54:18,741 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:18,742 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] [2018-04-13 07:54:18,742 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:18,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1028072899, now seen corresponding path program 1 times [2018-04-13 07:54:18,742 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:18,742 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:18,743 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:18,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:18,743 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:18,758 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:18,825 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:18,825 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 07:54:18,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 07:54:18,825 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 07:54:18,825 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-13 07:54:18,825 INFO L87 Difference]: Start difference. First operand 126 states and 140 transitions. Second operand 7 states. [2018-04-13 07:54:19,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:19,207 INFO L93 Difference]: Finished difference Result 261 states and 290 transitions. [2018-04-13 07:54:19,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-13 07:54:19,208 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-04-13 07:54:19,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:19,209 INFO L225 Difference]: With dead ends: 261 [2018-04-13 07:54:19,209 INFO L226 Difference]: Without dead ends: 261 [2018-04-13 07:54:19,209 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-04-13 07:54:19,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2018-04-13 07:54:19,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 124. [2018-04-13 07:54:19,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-04-13 07:54:19,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2018-04-13 07:54:19,217 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 26 [2018-04-13 07:54:19,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:19,217 INFO L459 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2018-04-13 07:54:19,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 07:54:19,217 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2018-04-13 07:54:19,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-13 07:54:19,217 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:19,217 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] [2018-04-13 07:54:19,218 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:19,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1028072900, now seen corresponding path program 1 times [2018-04-13 07:54:19,218 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:19,218 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:19,218 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:19,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:19,219 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:19,230 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:19,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:19,266 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:19,266 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 07:54:19,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 07:54:19,267 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 07:54:19,267 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-13 07:54:19,267 INFO L87 Difference]: Start difference. First operand 124 states and 142 transitions. Second operand 7 states. [2018-04-13 07:54:19,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:19,482 INFO L93 Difference]: Finished difference Result 237 states and 264 transitions. [2018-04-13 07:54:19,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-13 07:54:19,482 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-04-13 07:54:19,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:19,483 INFO L225 Difference]: With dead ends: 237 [2018-04-13 07:54:19,483 INFO L226 Difference]: Without dead ends: 237 [2018-04-13 07:54:19,483 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 [2018-04-13 07:54:19,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-04-13 07:54:19,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 112. [2018-04-13 07:54:19,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-13 07:54:19,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2018-04-13 07:54:19,490 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 26 [2018-04-13 07:54:19,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:19,490 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2018-04-13 07:54:19,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 07:54:19,491 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2018-04-13 07:54:19,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-13 07:54:19,491 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:19,491 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] [2018-04-13 07:54:19,491 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:19,492 INFO L82 PathProgramCache]: Analyzing trace with hash 774281829, now seen corresponding path program 1 times [2018-04-13 07:54:19,492 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:19,492 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:19,493 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:19,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:19,493 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:19,503 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:19,535 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:19,536 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 07:54:19,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-13 07:54:19,536 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-13 07:54:19,536 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-13 07:54:19,536 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand 6 states. [2018-04-13 07:54:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:19,634 INFO L93 Difference]: Finished difference Result 207 states and 224 transitions. [2018-04-13 07:54:19,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-13 07:54:19,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-04-13 07:54:19,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:19,635 INFO L225 Difference]: With dead ends: 207 [2018-04-13 07:54:19,635 INFO L226 Difference]: Without dead ends: 207 [2018-04-13 07:54:19,635 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-04-13 07:54:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-04-13 07:54:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 126. [2018-04-13 07:54:19,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-04-13 07:54:19,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 142 transitions. [2018-04-13 07:54:19,640 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 142 transitions. Word has length 28 [2018-04-13 07:54:19,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:19,640 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 142 transitions. [2018-04-13 07:54:19,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-13 07:54:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 142 transitions. [2018-04-13 07:54:19,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-13 07:54:19,641 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:19,641 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] [2018-04-13 07:54:19,641 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:19,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1992576068, now seen corresponding path program 1 times [2018-04-13 07:54:19,641 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:19,641 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:19,642 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:19,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:19,642 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:19,651 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:19,682 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:19,683 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 07:54:19,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 07:54:19,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 07:54:19,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-13 07:54:19,683 INFO L87 Difference]: Start difference. First operand 126 states and 142 transitions. Second operand 7 states. [2018-04-13 07:54:19,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:19,856 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2018-04-13 07:54:19,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-13 07:54:19,857 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-04-13 07:54:19,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:19,858 INFO L225 Difference]: With dead ends: 169 [2018-04-13 07:54:19,858 INFO L226 Difference]: Without dead ends: 169 [2018-04-13 07:54:19,858 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 [2018-04-13 07:54:19,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-04-13 07:54:19,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 124. [2018-04-13 07:54:19,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-04-13 07:54:19,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 140 transitions. [2018-04-13 07:54:19,863 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 140 transitions. Word has length 30 [2018-04-13 07:54:19,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:19,863 INFO L459 AbstractCegarLoop]: Abstraction has 124 states and 140 transitions. [2018-04-13 07:54:19,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 07:54:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 140 transitions. [2018-04-13 07:54:19,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-13 07:54:19,864 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:19,864 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] [2018-04-13 07:54:19,864 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:19,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1992576067, now seen corresponding path program 1 times [2018-04-13 07:54:19,865 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:19,865 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:19,865 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:19,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:19,865 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:19,874 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:19,925 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:19,925 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 07:54:19,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 07:54:19,925 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 07:54:19,925 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-13 07:54:19,925 INFO L87 Difference]: Start difference. First operand 124 states and 140 transitions. Second operand 7 states. [2018-04-13 07:54:20,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:20,199 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2018-04-13 07:54:20,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-13 07:54:20,199 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-04-13 07:54:20,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:20,200 INFO L225 Difference]: With dead ends: 184 [2018-04-13 07:54:20,200 INFO L226 Difference]: Without dead ends: 184 [2018-04-13 07:54:20,201 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 [2018-04-13 07:54:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-04-13 07:54:20,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 107. [2018-04-13 07:54:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-04-13 07:54:20,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2018-04-13 07:54:20,204 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 30 [2018-04-13 07:54:20,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:20,204 INFO L459 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2018-04-13 07:54:20,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 07:54:20,204 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2018-04-13 07:54:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-13 07:54:20,205 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:20,205 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] [2018-04-13 07:54:20,205 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:20,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1176636889, now seen corresponding path program 1 times [2018-04-13 07:54:20,206 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:20,206 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:20,206 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:20,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:20,211 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:20,221 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:20,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:20,286 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:20,287 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 07:54:20,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-13 07:54:20,287 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-13 07:54:20,287 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-13 07:54:20,287 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 6 states. [2018-04-13 07:54:20,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:20,409 INFO L93 Difference]: Finished difference Result 174 states and 187 transitions. [2018-04-13 07:54:20,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-13 07:54:20,409 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-04-13 07:54:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:20,410 INFO L225 Difference]: With dead ends: 174 [2018-04-13 07:54:20,411 INFO L226 Difference]: Without dead ends: 174 [2018-04-13 07:54:20,411 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-04-13 07:54:20,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-04-13 07:54:20,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 110. [2018-04-13 07:54:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-04-13 07:54:20,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2018-04-13 07:54:20,414 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 31 [2018-04-13 07:54:20,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:20,414 INFO L459 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2018-04-13 07:54:20,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-13 07:54:20,414 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2018-04-13 07:54:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-04-13 07:54:20,417 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:20,417 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:54:20,417 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:20,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1359050271, now seen corresponding path program 1 times [2018-04-13 07:54:20,417 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:20,417 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:20,418 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:20,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:20,418 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:20,433 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:20,438 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:20,438 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:20,438 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:20,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:20,467 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:20,553 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 [2018-04-13 07:54:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:20,561 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:20,562 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 07:54:20,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 07:54:20,562 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 07:54:20,562 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2018-04-13 07:54:20,562 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 7 states. [2018-04-13 07:54:20,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:20,711 INFO L93 Difference]: Finished difference Result 147 states and 162 transitions. [2018-04-13 07:54:20,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-13 07:54:20,711 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-04-13 07:54:20,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:20,712 INFO L225 Difference]: With dead ends: 147 [2018-04-13 07:54:20,712 INFO L226 Difference]: Without dead ends: 142 [2018-04-13 07:54:20,712 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=50, Unknown=2, NotChecked=14, Total=90 [2018-04-13 07:54:20,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-04-13 07:54:20,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 116. [2018-04-13 07:54:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-04-13 07:54:20,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 130 transitions. [2018-04-13 07:54:20,715 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 130 transitions. Word has length 38 [2018-04-13 07:54:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:20,716 INFO L459 AbstractCegarLoop]: Abstraction has 116 states and 130 transitions. [2018-04-13 07:54:20,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 07:54:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 130 transitions. [2018-04-13 07:54:20,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-13 07:54:20,717 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:20,717 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] [2018-04-13 07:54:20,717 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:20,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1537105453, now seen corresponding path program 1 times [2018-04-13 07:54:20,717 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:20,717 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:20,718 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:20,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:20,718 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:20,730 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:20,732 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:20,733 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:20,733 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:20,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:20,766 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:20,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:20,785 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,788 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:20,812 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:54:20,814 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 8 treesize of output 7 [2018-04-13 07:54:20,815 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,816 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,824 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,824 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-13 07:54:20,841 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:20,841 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:20,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:54:20,842 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,848 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,848 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-13 07:54:20,872 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 [2018-04-13 07:54:20,874 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 [2018-04-13 07:54:20,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,875 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,883 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,883 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:30 [2018-04-13 07:54:20,899 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 [2018-04-13 07:54:20,902 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 [2018-04-13 07:54:20,902 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,903 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:20,909 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:21 [2018-04-13 07:54:20,968 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 [2018-04-13 07:54:20,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:54:20,972 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:20,990 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. [2018-04-13 07:54:20,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:28 [2018-04-13 07:54:21,051 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 [2018-04-13 07:54:21,054 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:21,054 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 [2018-04-13 07:54:21,055 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,072 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 [2018-04-13 07:54:21,072 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,073 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,078 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:38, output treesize:3 [2018-04-13 07:54:21,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:21,092 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:21,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-13 07:54:21,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-13 07:54:21,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-13 07:54:21,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-04-13 07:54:21,093 INFO L87 Difference]: Start difference. First operand 116 states and 130 transitions. Second operand 14 states. [2018-04-13 07:54:21,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:21,666 INFO L93 Difference]: Finished difference Result 210 states and 228 transitions. [2018-04-13 07:54:21,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-13 07:54:21,667 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2018-04-13 07:54:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:21,667 INFO L225 Difference]: With dead ends: 210 [2018-04-13 07:54:21,668 INFO L226 Difference]: Without dead ends: 210 [2018-04-13 07:54:21,668 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2018-04-13 07:54:21,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-04-13 07:54:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 133. [2018-04-13 07:54:21,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-04-13 07:54:21,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 149 transitions. [2018-04-13 07:54:21,670 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 149 transitions. Word has length 39 [2018-04-13 07:54:21,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:21,670 INFO L459 AbstractCegarLoop]: Abstraction has 133 states and 149 transitions. [2018-04-13 07:54:21,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-13 07:54:21,670 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 149 transitions. [2018-04-13 07:54:21,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-13 07:54:21,671 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:21,671 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] [2018-04-13 07:54:21,671 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:21,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1624837059, now seen corresponding path program 1 times [2018-04-13 07:54:21,671 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:21,671 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:21,672 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:21,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:21,672 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:21,684 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:21,687 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:21,687 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:21,687 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:21,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:21,716 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:21,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:21,724 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,728 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:21,750 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:21,751 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:21,752 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 [2018-04-13 07:54:21,752 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,758 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,758 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-13 07:54:21,781 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 [2018-04-13 07:54:21,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:21,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,784 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,791 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-13 07:54:21,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:54:21,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:21,829 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,833 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:21,839 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:45 [2018-04-13 07:54:21,896 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 [2018-04-13 07:54:21,899 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 [2018-04-13 07:54:21,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,915 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:21,916 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 [2018-04-13 07:54:21,917 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,921 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:21,929 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. [2018-04-13 07:54:21,929 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:60, output treesize:15 [2018-04-13 07:54:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:21,980 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:21,980 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-13 07:54:21,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-13 07:54:21,981 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-13 07:54:21,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-04-13 07:54:21,982 INFO L87 Difference]: Start difference. First operand 133 states and 149 transitions. Second operand 15 states. [2018-04-13 07:54:22,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:22,788 INFO L93 Difference]: Finished difference Result 230 states and 256 transitions. [2018-04-13 07:54:22,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-13 07:54:22,788 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 39 [2018-04-13 07:54:22,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:22,789 INFO L225 Difference]: With dead ends: 230 [2018-04-13 07:54:22,789 INFO L226 Difference]: Without dead ends: 230 [2018-04-13 07:54:22,790 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-04-13 07:54:22,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-04-13 07:54:22,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 158. [2018-04-13 07:54:22,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-04-13 07:54:22,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 180 transitions. [2018-04-13 07:54:22,794 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 180 transitions. Word has length 39 [2018-04-13 07:54:22,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:22,794 INFO L459 AbstractCegarLoop]: Abstraction has 158 states and 180 transitions. [2018-04-13 07:54:22,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-13 07:54:22,794 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2018-04-13 07:54:22,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-13 07:54:22,795 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:22,795 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] [2018-04-13 07:54:22,795 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:22,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1624837058, now seen corresponding path program 1 times [2018-04-13 07:54:22,796 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:22,796 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:22,796 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:22,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:22,796 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:22,810 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:22,813 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:22,813 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:22,813 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:22,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:22,842 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:22,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:22,846 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:22,851 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,854 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:54:22,885 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:22,886 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:22,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:22,887 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,897 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 [2018-04-13 07:54:22,897 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,905 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,905 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-13 07:54:22,928 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 [2018-04-13 07:54:22,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:22,930 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,931 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,942 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 [2018-04-13 07:54:22,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:22,943 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,944 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,952 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:22,953 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:54, output treesize:49 [2018-04-13 07:54:23,032 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 [2018-04-13 07:54:23,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:23,035 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,042 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,062 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:54:23,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:23,065 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,071 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,082 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. [2018-04-13 07:54:23,083 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:96, output treesize:76 [2018-04-13 07:54:23,173 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 [2018-04-13 07:54:23,176 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:23,177 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 [2018-04-13 07:54:23,177 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,186 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 [2018-04-13 07:54:23,187 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,192 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,210 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 [2018-04-13 07:54:23,213 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 [2018-04-13 07:54:23,213 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,221 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:23,222 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 [2018-04-13 07:54:23,222 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,225 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:23,236 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. [2018-04-13 07:54:23,236 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:104, output treesize:23 [2018-04-13 07:54:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:23,312 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:23,312 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-13 07:54:23,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-13 07:54:23,313 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-13 07:54:23,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-04-13 07:54:23,313 INFO L87 Difference]: Start difference. First operand 158 states and 180 transitions. Second operand 16 states. [2018-04-13 07:54:24,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:24,230 INFO L93 Difference]: Finished difference Result 256 states and 283 transitions. [2018-04-13 07:54:24,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-13 07:54:24,230 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 39 [2018-04-13 07:54:24,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:24,231 INFO L225 Difference]: With dead ends: 256 [2018-04-13 07:54:24,231 INFO L226 Difference]: Without dead ends: 256 [2018-04-13 07:54:24,232 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=786, Unknown=0, NotChecked=0, Total=992 [2018-04-13 07:54:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-04-13 07:54:24,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 156. [2018-04-13 07:54:24,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-04-13 07:54:24,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 177 transitions. [2018-04-13 07:54:24,236 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 177 transitions. Word has length 39 [2018-04-13 07:54:24,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:24,236 INFO L459 AbstractCegarLoop]: Abstraction has 156 states and 177 transitions. [2018-04-13 07:54:24,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-13 07:54:24,236 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 177 transitions. [2018-04-13 07:54:24,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-13 07:54:24,237 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:24,237 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:54:24,237 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:24,237 INFO L82 PathProgramCache]: Analyzing trace with hash -60917604, now seen corresponding path program 1 times [2018-04-13 07:54:24,238 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:24,238 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:24,238 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:24,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:24,238 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:24,244 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:24,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:24,352 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 07:54:24,352 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-13 07:54:24,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-13 07:54:24,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-13 07:54:24,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-13 07:54:24,352 INFO L87 Difference]: Start difference. First operand 156 states and 177 transitions. Second operand 8 states. [2018-04-13 07:54:24,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:24,515 INFO L93 Difference]: Finished difference Result 177 states and 198 transitions. [2018-04-13 07:54:24,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-13 07:54:24,517 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-04-13 07:54:24,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:24,517 INFO L225 Difference]: With dead ends: 177 [2018-04-13 07:54:24,517 INFO L226 Difference]: Without dead ends: 162 [2018-04-13 07:54:24,518 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-04-13 07:54:24,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-04-13 07:54:24,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 141. [2018-04-13 07:54:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-04-13 07:54:24,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 161 transitions. [2018-04-13 07:54:24,520 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 161 transitions. Word has length 41 [2018-04-13 07:54:24,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:24,520 INFO L459 AbstractCegarLoop]: Abstraction has 141 states and 161 transitions. [2018-04-13 07:54:24,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-13 07:54:24,521 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 161 transitions. [2018-04-13 07:54:24,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-13 07:54:24,521 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:24,521 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] [2018-04-13 07:54:24,521 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:24,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1495501817, now seen corresponding path program 1 times [2018-04-13 07:54:24,522 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:24,522 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:24,522 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:24,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:24,525 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:24,536 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:24,538 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:24,538 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:24,538 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:24,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:24,568 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:24,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:24,576 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,579 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,579 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:24,606 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:24,607 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:24,607 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 [2018-04-13 07:54:24,608 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,614 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-13 07:54:24,634 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 [2018-04-13 07:54:24,640 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 [2018-04-13 07:54:24,640 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,642 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,650 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-13 07:54:24,685 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 [2018-04-13 07:54:24,688 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 16 treesize of output 15 [2018-04-13 07:54:24,688 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,693 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,701 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:24,701 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:45 [2018-04-13 07:54:24,779 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 [2018-04-13 07:54:24,781 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:24,782 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 [2018-04-13 07:54:24,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,787 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 [2018-04-13 07:54:24,788 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,790 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:24,795 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. [2018-04-13 07:54:24,795 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:60, output treesize:15 [2018-04-13 07:54:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:24,820 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:24,820 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-04-13 07:54:24,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-13 07:54:24,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-13 07:54:24,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-04-13 07:54:24,821 INFO L87 Difference]: Start difference. First operand 141 states and 161 transitions. Second operand 15 states. [2018-04-13 07:54:25,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:25,281 INFO L93 Difference]: Finished difference Result 206 states and 232 transitions. [2018-04-13 07:54:25,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-13 07:54:25,282 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2018-04-13 07:54:25,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:25,282 INFO L225 Difference]: With dead ends: 206 [2018-04-13 07:54:25,283 INFO L226 Difference]: Without dead ends: 206 [2018-04-13 07:54:25,283 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2018-04-13 07:54:25,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-04-13 07:54:25,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 146. [2018-04-13 07:54:25,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-04-13 07:54:25,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 167 transitions. [2018-04-13 07:54:25,286 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 167 transitions. Word has length 42 [2018-04-13 07:54:25,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:25,287 INFO L459 AbstractCegarLoop]: Abstraction has 146 states and 167 transitions. [2018-04-13 07:54:25,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-13 07:54:25,287 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 167 transitions. [2018-04-13 07:54:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-13 07:54:25,287 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:25,287 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] [2018-04-13 07:54:25,288 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:25,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1495501818, now seen corresponding path program 1 times [2018-04-13 07:54:25,288 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:25,288 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:25,289 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:25,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:25,289 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:25,299 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:25,304 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:25,304 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:25,304 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:25,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:25,328 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:25,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:25,336 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:25,341 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,345 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:54:25,374 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:25,374 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 [2018-04-13 07:54:25,375 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,386 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:25,386 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:25,387 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 [2018-04-13 07:54:25,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,395 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,395 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-13 07:54:25,417 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 11 treesize of output 4 [2018-04-13 07:54:25,417 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,427 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 [2018-04-13 07:54:25,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:25,429 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,430 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,442 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 [2018-04-13 07:54:25,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:25,444 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,445 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,454 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. [2018-04-13 07:54:25,454 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:64, output treesize:49 [2018-04-13 07:54:25,521 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 [2018-04-13 07:54:25,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:25,523 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,529 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,541 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 [2018-04-13 07:54:25,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:25,543 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,546 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,554 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. [2018-04-13 07:54:25,554 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:96, output treesize:76 [2018-04-13 07:54:25,623 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 [2018-04-13 07:54:25,625 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:25,626 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 [2018-04-13 07:54:25,626 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,633 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 7 treesize of output 1 [2018-04-13 07:54:25,633 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,636 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,649 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 [2018-04-13 07:54:25,651 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:25,651 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 15 treesize of output 11 [2018-04-13 07:54:25,652 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:54:25,657 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,658 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:25,664 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. [2018-04-13 07:54:25,664 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:104, output treesize:23 [2018-04-13 07:54:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:25,698 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:25,698 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-13 07:54:25,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-13 07:54:25,698 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-13 07:54:25,699 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-04-13 07:54:25,699 INFO L87 Difference]: Start difference. First operand 146 states and 167 transitions. Second operand 16 states. [2018-04-13 07:54:26,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:26,472 INFO L93 Difference]: Finished difference Result 228 states and 253 transitions. [2018-04-13 07:54:26,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-13 07:54:26,473 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-04-13 07:54:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:26,473 INFO L225 Difference]: With dead ends: 228 [2018-04-13 07:54:26,473 INFO L226 Difference]: Without dead ends: 228 [2018-04-13 07:54:26,474 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2018-04-13 07:54:26,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-04-13 07:54:26,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 146. [2018-04-13 07:54:26,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-04-13 07:54:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 167 transitions. [2018-04-13 07:54:26,476 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 167 transitions. Word has length 42 [2018-04-13 07:54:26,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:26,476 INFO L459 AbstractCegarLoop]: Abstraction has 146 states and 167 transitions. [2018-04-13 07:54:26,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-13 07:54:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 167 transitions. [2018-04-13 07:54:26,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-13 07:54:26,476 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:26,477 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] [2018-04-13 07:54:26,477 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:26,477 INFO L82 PathProgramCache]: Analyzing trace with hash -776656561, now seen corresponding path program 1 times [2018-04-13 07:54:26,477 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:26,477 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:26,477 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:26,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:26,477 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:26,482 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:26,484 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:26,484 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:26,484 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:26,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:26,496 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:26,499 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 6 treesize of output 5 [2018-04-13 07:54:26,499 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:26,503 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,506 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,506 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:54:26,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:54:26,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:54:26,540 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,541 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,546 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,546 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2018-04-13 07:54:26,555 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:26,556 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 [2018-04-13 07:54:26,556 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,564 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:26,565 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:26,566 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:26,566 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,571 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,571 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:31 [2018-04-13 07:54:26,593 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 [2018-04-13 07:54:26,595 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 [2018-04-13 07:54:26,595 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,606 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,606 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:43 [2018-04-13 07:54:26,620 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 [2018-04-13 07:54:26,621 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 [2018-04-13 07:54:26,622 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,624 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,628 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:26,629 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:28 [2018-04-13 07:54:26,669 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 [2018-04-13 07:54:26,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:54:26,671 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,674 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,681 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. [2018-04-13 07:54:26,681 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-13 07:54:26,735 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 [2018-04-13 07:54:26,740 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 11 treesize of output 12 [2018-04-13 07:54:26,740 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 07:54:26,745 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 [2018-04-13 07:54:26,745 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:26,747 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:26,765 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. [2018-04-13 07:54:26,765 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:45, output treesize:49 [2018-04-13 07:54:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:26,833 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:26,833 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-13 07:54:26,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-13 07:54:26,833 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-13 07:54:26,833 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2018-04-13 07:54:26,833 INFO L87 Difference]: Start difference. First operand 146 states and 167 transitions. Second operand 16 states. [2018-04-13 07:54:27,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:27,682 INFO L93 Difference]: Finished difference Result 245 states and 272 transitions. [2018-04-13 07:54:27,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-13 07:54:27,682 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2018-04-13 07:54:27,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:27,683 INFO L225 Difference]: With dead ends: 245 [2018-04-13 07:54:27,683 INFO L226 Difference]: Without dead ends: 245 [2018-04-13 07:54:27,684 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2018-04-13 07:54:27,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-04-13 07:54:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 149. [2018-04-13 07:54:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-04-13 07:54:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 170 transitions. [2018-04-13 07:54:27,687 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 170 transitions. Word has length 42 [2018-04-13 07:54:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:27,687 INFO L459 AbstractCegarLoop]: Abstraction has 149 states and 170 transitions. [2018-04-13 07:54:27,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-13 07:54:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 170 transitions. [2018-04-13 07:54:27,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-13 07:54:27,688 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:27,688 INFO L355 BasicCegarLoop]: trace histogram [3, 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] [2018-04-13 07:54:27,688 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:27,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1280833353, now seen corresponding path program 2 times [2018-04-13 07:54:27,689 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:27,689 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:27,689 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:27,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:27,690 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:27,699 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:27,701 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:27,702 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:27,702 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:27,702 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:54:27,726 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:54:27,727 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:54:27,730 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:27,736 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:27,737 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,740 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:27,773 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:27,774 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:27,775 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:27,775 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,789 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 [2018-04-13 07:54:27,789 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,798 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,799 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:27 [2018-04-13 07:54:27,821 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 [2018-04-13 07:54:27,822 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,831 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 [2018-04-13 07:54:27,833 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 [2018-04-13 07:54:27,833 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,834 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,843 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 [2018-04-13 07:54:27,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:27,844 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,845 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,852 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. [2018-04-13 07:54:27,852 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:55, output treesize:45 [2018-04-13 07:54:27,916 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 [2018-04-13 07:54:27,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:27,917 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,918 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:27,928 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:74, output treesize:79 [2018-04-13 07:54:27,948 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 103 treesize of output 97 [2018-04-13 07:54:27,950 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 22 treesize of output 21 [2018-04-13 07:54:27,950 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,956 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,969 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 [2018-04-13 07:54:27,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:27,971 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,976 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:27,985 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. [2018-04-13 07:54:27,986 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:123, output treesize:103 [2018-04-13 07:54:28,086 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 24 treesize of output 14 [2018-04-13 07:54:28,087 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,109 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 81 treesize of output 72 [2018-04-13 07:54:28,112 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 [2018-04-13 07:54:28,112 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,122 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:28,122 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 52 treesize of output 40 [2018-04-13 07:54:28,123 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,129 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,167 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 47 treesize of output 41 [2018-04-13 07:54:28,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:54:28,169 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,177 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:28,178 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 26 treesize of output 18 [2018-04-13 07:54:28,178 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,182 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,198 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:131, output treesize:11 [2018-04-13 07:54:28,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-13 07:54:28,245 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:28,245 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 [2018-04-13 07:54:28,245 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,247 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,249 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:28,249 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2018-04-13 07:54:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:28,265 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:28,265 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-04-13 07:54:28,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 07:54:28,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 07:54:28,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-04-13 07:54:28,266 INFO L87 Difference]: Start difference. First operand 149 states and 170 transitions. Second operand 18 states. [2018-04-13 07:54:29,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:29,166 INFO L93 Difference]: Finished difference Result 241 states and 264 transitions. [2018-04-13 07:54:29,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-13 07:54:29,166 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 44 [2018-04-13 07:54:29,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:29,167 INFO L225 Difference]: With dead ends: 241 [2018-04-13 07:54:29,167 INFO L226 Difference]: Without dead ends: 241 [2018-04-13 07:54:29,167 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=971, Unknown=0, NotChecked=0, Total=1190 [2018-04-13 07:54:29,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2018-04-13 07:54:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 152. [2018-04-13 07:54:29,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-04-13 07:54:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2018-04-13 07:54:29,169 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 44 [2018-04-13 07:54:29,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:29,170 INFO L459 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2018-04-13 07:54:29,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 07:54:29,170 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2018-04-13 07:54:29,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-13 07:54:29,170 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:29,170 INFO L355 BasicCegarLoop]: trace histogram [3, 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] [2018-04-13 07:54:29,170 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:29,170 INFO L82 PathProgramCache]: Analyzing trace with hash -992636466, now seen corresponding path program 2 times [2018-04-13 07:54:29,170 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:29,170 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:29,171 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:29,171 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:54:29,171 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:29,177 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:29,179 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:29,179 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:29,179 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:29,180 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:54:29,193 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:54:29,193 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:54:29,196 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:29,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:29,204 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:29,208 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,213 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:54:29,251 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:29,252 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:29,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:29,253 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,264 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 [2018-04-13 07:54:29,264 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,287 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:27 [2018-04-13 07:54:29,310 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 [2018-04-13 07:54:29,310 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,321 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 [2018-04-13 07:54:29,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:29,322 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,324 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,332 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 [2018-04-13 07:54:29,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:29,334 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,335 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,341 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. [2018-04-13 07:54:29,341 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:57, output treesize:32 [2018-04-13 07:54:29,383 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 [2018-04-13 07:54:29,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 19 [2018-04-13 07:54:29,385 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,387 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,396 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:29,396 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:66 [2018-04-13 07:54:29,428 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 91 treesize of output 92 [2018-04-13 07:54:29,431 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 22 treesize of output 21 [2018-04-13 07:54:29,431 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,440 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,459 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 82 treesize of output 76 [2018-04-13 07:54:29,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:29,462 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,469 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,489 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. [2018-04-13 07:54:29,490 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:110, output treesize:90 [2018-04-13 07:54:29,553 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 79 treesize of output 70 [2018-04-13 07:54:29,555 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:29,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2018-04-13 07:54:29,556 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,564 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 [2018-04-13 07:54:29,564 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,569 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,580 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 [2018-04-13 07:54:29,582 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:29,583 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 21 [2018-04-13 07:54:29,583 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,597 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 [2018-04-13 07:54:29,598 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,601 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,648 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:101, output treesize:11 [2018-04-13 07:54:29,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-13 07:54:29,690 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:29,691 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 [2018-04-13 07:54:29,691 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,693 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:29,697 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2018-04-13 07:54:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:29,722 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:29,722 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-13 07:54:29,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-13 07:54:29,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-13 07:54:29,723 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2018-04-13 07:54:29,723 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand 17 states. [2018-04-13 07:54:30,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:30,462 INFO L93 Difference]: Finished difference Result 216 states and 238 transitions. [2018-04-13 07:54:30,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-13 07:54:30,462 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 47 [2018-04-13 07:54:30,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:30,463 INFO L225 Difference]: With dead ends: 216 [2018-04-13 07:54:30,463 INFO L226 Difference]: Without dead ends: 216 [2018-04-13 07:54:30,463 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2018-04-13 07:54:30,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-04-13 07:54:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 152. [2018-04-13 07:54:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-04-13 07:54:30,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2018-04-13 07:54:30,465 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 47 [2018-04-13 07:54:30,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:30,465 INFO L459 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2018-04-13 07:54:30,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-13 07:54:30,465 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2018-04-13 07:54:30,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-13 07:54:30,466 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:30,466 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] [2018-04-13 07:54:30,466 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:30,466 INFO L82 PathProgramCache]: Analyzing trace with hash -354219371, now seen corresponding path program 1 times [2018-04-13 07:54:30,466 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:30,466 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:30,466 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:30,467 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:54:30,467 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:30,472 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:30,474 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:30,474 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:30,474 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:30,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:30,489 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:30,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:30,496 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:30,500 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,503 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,503 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:54:30,527 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:30,528 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:30,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:30,528 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,535 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 [2018-04-13 07:54:30,535 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,540 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,540 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-13 07:54:30,561 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 [2018-04-13 07:54:30,562 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 [2018-04-13 07:54:30,562 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,563 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,570 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,570 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-13 07:54:30,615 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 [2018-04-13 07:54:30,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:30,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,617 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,625 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:30,625 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:56, output treesize:58 [2018-04-13 07:54:30,644 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 73 treesize of output 67 [2018-04-13 07:54:30,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:30,646 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,652 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,662 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. [2018-04-13 07:54:30,662 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:87, output treesize:77 [2018-04-13 07:54:30,761 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 72 treesize of output 61 [2018-04-13 07:54:30,763 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:30,764 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 47 treesize of output 31 [2018-04-13 07:54:30,764 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,774 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-13 07:54:30,774 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,780 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:30,801 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:30,802 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:96, output treesize:37 [2018-04-13 07:54:30,897 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 15 treesize of output 11 [2018-04-13 07:54:30,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:30,902 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 07:54:30,905 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:30,914 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 2 xjuncts. [2018-04-13 07:54:30,914 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:47, output treesize:68 [2018-04-13 07:54:31,010 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:31,010 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:31,010 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-13 07:54:31,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 07:54:31,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 07:54:31,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=336, Unknown=2, NotChecked=0, Total=380 [2018-04-13 07:54:31,011 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand 20 states. [2018-04-13 07:54:32,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:32,390 INFO L93 Difference]: Finished difference Result 223 states and 244 transitions. [2018-04-13 07:54:32,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-13 07:54:32,390 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 47 [2018-04-13 07:54:32,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:32,391 INFO L225 Difference]: With dead ends: 223 [2018-04-13 07:54:32,391 INFO L226 Difference]: Without dead ends: 222 [2018-04-13 07:54:32,391 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=227, Invalid=1175, Unknown=4, NotChecked=0, Total=1406 [2018-04-13 07:54:32,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-04-13 07:54:32,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 152. [2018-04-13 07:54:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-04-13 07:54:32,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2018-04-13 07:54:32,394 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 47 [2018-04-13 07:54:32,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:32,394 INFO L459 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2018-04-13 07:54:32,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 07:54:32,394 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2018-04-13 07:54:32,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-13 07:54:32,395 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:32,395 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, 1, 1, 1, 1] [2018-04-13 07:54:32,395 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:32,395 INFO L82 PathProgramCache]: Analyzing trace with hash 312582095, now seen corresponding path program 1 times [2018-04-13 07:54:32,395 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:32,395 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:32,396 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:32,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:32,396 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:32,404 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:32,406 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:32,406 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:32,406 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:32,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:32,425 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:32,430 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:32,430 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,433 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,433 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:32,453 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:32,454 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:32,454 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 [2018-04-13 07:54:32,455 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,460 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,460 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-04-13 07:54:32,487 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:54:32,487 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,493 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 [2018-04-13 07:54:32,494 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 [2018-04-13 07:54:32,494 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,495 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,501 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. [2018-04-13 07:54:32,501 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:41, output treesize:30 [2018-04-13 07:54:32,539 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 [2018-04-13 07:54:32,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:32,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,545 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,549 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. [2018-04-13 07:54:32,549 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:52, output treesize:42 [2018-04-13 07:54:32,578 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 [2018-04-13 07:54:32,580 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 [2018-04-13 07:54:32,580 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:32,587 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 [2018-04-13 07:54:32,587 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:54:32,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:32,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-13 07:54:32,595 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:51, output treesize:13 [2018-04-13 07:54:32,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:32,624 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:32,624 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-13 07:54:32,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-13 07:54:32,624 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-13 07:54:32,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2018-04-13 07:54:32,624 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand 16 states. [2018-04-13 07:54:33,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:33,232 INFO L93 Difference]: Finished difference Result 210 states and 231 transitions. [2018-04-13 07:54:33,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-13 07:54:33,232 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 49 [2018-04-13 07:54:33,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:33,233 INFO L225 Difference]: With dead ends: 210 [2018-04-13 07:54:33,233 INFO L226 Difference]: Without dead ends: 209 [2018-04-13 07:54:33,233 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=848, Unknown=0, NotChecked=0, Total=1056 [2018-04-13 07:54:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-04-13 07:54:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 161. [2018-04-13 07:54:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-04-13 07:54:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 182 transitions. [2018-04-13 07:54:33,235 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 182 transitions. Word has length 49 [2018-04-13 07:54:33,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:33,235 INFO L459 AbstractCegarLoop]: Abstraction has 161 states and 182 transitions. [2018-04-13 07:54:33,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-13 07:54:33,235 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 182 transitions. [2018-04-13 07:54:33,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-13 07:54:33,236 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:33,236 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, 1, 1, 1, 1] [2018-04-13 07:54:33,236 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:33,236 INFO L82 PathProgramCache]: Analyzing trace with hash 52065721, now seen corresponding path program 1 times [2018-04-13 07:54:33,236 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:33,236 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:33,236 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:33,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:33,236 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:33,242 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:33,243 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:33,243 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:33,243 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:33,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:33,258 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:33,263 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 6 treesize of output 5 [2018-04-13 07:54:33,264 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,267 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 [2018-04-13 07:54:33,267 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:54:33,297 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:33,297 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 [2018-04-13 07:54:33,297 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,306 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:33,306 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:33,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:33,307 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,313 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-13 07:54:33,373 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 [2018-04-13 07:54:33,373 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,385 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 [2018-04-13 07:54:33,387 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 [2018-04-13 07:54:33,387 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,388 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,396 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,396 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:30 [2018-04-13 07:54:33,446 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 [2018-04-13 07:54:33,447 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:33,448 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,451 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,456 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. [2018-04-13 07:54:33,456 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:52, output treesize:42 [2018-04-13 07:54:33,484 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 [2018-04-13 07:54:33,488 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 [2018-04-13 07:54:33,488 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 07:54:33,493 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 [2018-04-13 07:54:33,493 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:33,495 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:33,500 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-13 07:54:33,500 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:51, output treesize:13 [2018-04-13 07:54:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:33,526 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:33,526 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-13 07:54:33,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-13 07:54:33,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-13 07:54:33,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2018-04-13 07:54:33,526 INFO L87 Difference]: Start difference. First operand 161 states and 182 transitions. Second operand 16 states. [2018-04-13 07:54:34,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:34,294 INFO L93 Difference]: Finished difference Result 225 states and 246 transitions. [2018-04-13 07:54:34,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-13 07:54:34,294 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 49 [2018-04-13 07:54:34,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:34,295 INFO L225 Difference]: With dead ends: 225 [2018-04-13 07:54:34,295 INFO L226 Difference]: Without dead ends: 224 [2018-04-13 07:54:34,295 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=218, Invalid=904, Unknown=0, NotChecked=0, Total=1122 [2018-04-13 07:54:34,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-04-13 07:54:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 158. [2018-04-13 07:54:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-04-13 07:54:34,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 179 transitions. [2018-04-13 07:54:34,297 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 179 transitions. Word has length 49 [2018-04-13 07:54:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:34,297 INFO L459 AbstractCegarLoop]: Abstraction has 158 states and 179 transitions. [2018-04-13 07:54:34,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-13 07:54:34,298 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 179 transitions. [2018-04-13 07:54:34,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-13 07:54:34,298 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:34,298 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-13 07:54:34,298 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:34,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1256109659, now seen corresponding path program 2 times [2018-04-13 07:54:34,298 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:34,298 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:34,299 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:34,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:34,299 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:34,305 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:34,307 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:34,307 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:34,308 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:34,308 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:54:34,326 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:54:34,326 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:54:34,329 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:34,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:34,340 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:34,346 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,350 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:54:34,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:54:34,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:54:34,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,376 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,385 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,385 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:27 [2018-04-13 07:54:34,399 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:34,399 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 [2018-04-13 07:54:34,399 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,409 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:34,409 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:34,410 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:34,410 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,417 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,417 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:31 [2018-04-13 07:54:34,442 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 [2018-04-13 07:54:34,442 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,456 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 [2018-04-13 07:54:34,466 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 [2018-04-13 07:54:34,466 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,472 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,480 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:56, output treesize:35 [2018-04-13 07:54:34,545 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:34,547 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 [2018-04-13 07:54:34,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:34,549 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,551 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:34,558 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2018-04-13 07:54:34,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:34,580 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:34,580 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:34,581 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:34,581 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 [2018-04-13 07:54:34,581 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,592 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:34,592 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:64, output treesize:57 [2018-04-13 07:54:34,638 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:34,640 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 [2018-04-13 07:54:34,642 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:34,642 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,646 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:34,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:69 [2018-04-13 07:54:34,675 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 [2018-04-13 07:54:34,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:54:34,677 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,681 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 [2018-04-13 07:54:34,681 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:34,687 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:34,694 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. [2018-04-13 07:54:34,695 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:93, output treesize:36 [2018-04-13 07:54:34,742 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 [2018-04-13 07:54:34,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:54:34,744 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,748 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,756 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. [2018-04-13 07:54:34,756 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:43 [2018-04-13 07:54:34,814 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 [2018-04-13 07:54:34,815 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 5 treesize of output 1 [2018-04-13 07:54:34,815 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,820 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 [2018-04-13 07:54:34,821 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,823 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:34,824 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 [2018-04-13 07:54:34,824 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,826 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:34,832 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-04-13 07:54:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:34,853 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:34,853 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-13 07:54:34,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 07:54:34,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 07:54:34,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2018-04-13 07:54:34,853 INFO L87 Difference]: Start difference. First operand 158 states and 179 transitions. Second operand 20 states. [2018-04-13 07:54:36,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:36,054 INFO L93 Difference]: Finished difference Result 251 states and 276 transitions. [2018-04-13 07:54:36,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-13 07:54:36,054 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 50 [2018-04-13 07:54:36,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:36,055 INFO L225 Difference]: With dead ends: 251 [2018-04-13 07:54:36,055 INFO L226 Difference]: Without dead ends: 251 [2018-04-13 07:54:36,056 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=243, Invalid=1317, Unknown=0, NotChecked=0, Total=1560 [2018-04-13 07:54:36,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-04-13 07:54:36,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 175. [2018-04-13 07:54:36,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-04-13 07:54:36,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 198 transitions. [2018-04-13 07:54:36,059 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 198 transitions. Word has length 50 [2018-04-13 07:54:36,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:36,059 INFO L459 AbstractCegarLoop]: Abstraction has 175 states and 198 transitions. [2018-04-13 07:54:36,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 07:54:36,059 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 198 transitions. [2018-04-13 07:54:36,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-13 07:54:36,059 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:36,059 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] [2018-04-13 07:54:36,059 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:36,059 INFO L82 PathProgramCache]: Analyzing trace with hash -742182661, now seen corresponding path program 1 times [2018-04-13 07:54:36,059 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:36,060 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:36,060 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:36,060 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:54:36,060 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:36,066 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:36,068 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:36,068 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:36,068 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:36,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:36,085 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:36,087 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:36,088 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:36,091 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,093 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:54:36,116 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:36,117 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:36,117 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 [2018-04-13 07:54:36,117 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,142 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 [2018-04-13 07:54:36,143 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,154 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:31 [2018-04-13 07:54:36,207 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 [2018-04-13 07:54:36,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:36,209 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,210 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,220 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,221 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:56 [2018-04-13 07:54:36,292 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:36,293 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:36,294 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:36,295 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 [2018-04-13 07:54:36,295 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,309 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 [2018-04-13 07:54:36,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:36,317 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:65 [2018-04-13 07:54:36,346 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:36,349 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 54 treesize of output 55 [2018-04-13 07:54:36,350 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 [2018-04-13 07:54:36,351 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,356 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:36,367 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:83, output treesize:88 [2018-04-13 07:54:36,447 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 125 treesize of output 98 [2018-04-13 07:54:36,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:36,449 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,456 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,466 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. [2018-04-13 07:54:36,467 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:140, output treesize:124 [2018-04-13 07:54:36,539 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 [2018-04-13 07:54:36,539 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,554 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 [2018-04-13 07:54:36,557 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 [2018-04-13 07:54:36,557 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,563 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 [2018-04-13 07:54:36,563 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,567 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:36,567 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 25 treesize of output 17 [2018-04-13 07:54:36,568 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,570 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:36,575 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:143, output treesize:5 [2018-04-13 07:54:36,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:36,610 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:36,610 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-13 07:54:36,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 07:54:36,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 07:54:36,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2018-04-13 07:54:36,611 INFO L87 Difference]: Start difference. First operand 175 states and 198 transitions. Second operand 21 states. [2018-04-13 07:54:37,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:37,919 INFO L93 Difference]: Finished difference Result 290 states and 319 transitions. [2018-04-13 07:54:37,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:54:37,920 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 50 [2018-04-13 07:54:37,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:37,920 INFO L225 Difference]: With dead ends: 290 [2018-04-13 07:54:37,921 INFO L226 Difference]: Without dead ends: 290 [2018-04-13 07:54:37,921 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=340, Invalid=1640, Unknown=0, NotChecked=0, Total=1980 [2018-04-13 07:54:37,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2018-04-13 07:54:37,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 196. [2018-04-13 07:54:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-04-13 07:54:37,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 223 transitions. [2018-04-13 07:54:37,924 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 223 transitions. Word has length 50 [2018-04-13 07:54:37,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:37,925 INFO L459 AbstractCegarLoop]: Abstraction has 196 states and 223 transitions. [2018-04-13 07:54:37,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 07:54:37,925 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 223 transitions. [2018-04-13 07:54:37,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-13 07:54:37,925 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:37,926 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] [2018-04-13 07:54:37,926 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:37,926 INFO L82 PathProgramCache]: Analyzing trace with hash -742182660, now seen corresponding path program 1 times [2018-04-13 07:54:37,926 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:37,926 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:37,927 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:37,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:37,927 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:37,937 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:37,942 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:37,942 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:37,942 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:37,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:37,971 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:37,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:37,980 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:37,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:37,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:37,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:37,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:54:38,028 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,029 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 [2018-04-13 07:54:38,029 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,042 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,043 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:38,044 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,053 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,053 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:27 [2018-04-13 07:54:38,087 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 [2018-04-13 07:54:38,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:38,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,092 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,111 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:54:38,113 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 [2018-04-13 07:54:38,113 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,115 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,131 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:62, output treesize:57 [2018-04-13 07:54:38,233 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,234 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 [2018-04-13 07:54:38,234 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,250 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,251 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:38,252 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:38,268 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:77, output treesize:70 [2018-04-13 07:54:38,302 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,305 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 [2018-04-13 07:54:38,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:38,307 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,311 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,327 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,329 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 59 treesize of output 60 [2018-04-13 07:54:38,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:38,330 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,336 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,348 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. [2018-04-13 07:54:38,348 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:103, output treesize:79 [2018-04-13 07:54:38,432 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,449 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 116 [2018-04-13 07:54:38,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 148 [2018-04-13 07:54:38,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,497 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 99 [2018-04-13 07:54:38,497 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:54:38,534 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:38,565 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 125 treesize of output 110 [2018-04-13 07:54:38,567 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:38,567 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,575 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,579 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 91 treesize of output 82 [2018-04-13 07:54:38,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:38,580 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,588 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,619 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:38,620 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 5 variables, input treesize:162, output treesize:226 [2018-04-13 07:54:38,797 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:38,803 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 151 treesize of output 137 [2018-04-13 07:54:38,809 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 115 treesize of output 108 [2018-04-13 07:54:38,810 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:38,873 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:38,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 84 [2018-04-13 07:54:38,874 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,876 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:38,876 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 104 treesize of output 92 [2018-04-13 07:54:38,876 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:38,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 111 [2018-04-13 07:54:38,940 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:38,997 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:38,998 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 111 treesize of output 95 [2018-04-13 07:54:38,998 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,052 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 85 treesize of output 78 [2018-04-13 07:54:39,052 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,108 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-04-13 07:54:39,180 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 116 treesize of output 114 [2018-04-13 07:54:39,182 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 [2018-04-13 07:54:39,182 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,197 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:39,197 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 [2018-04-13 07:54:39,197 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,209 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,276 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 83 treesize of output 74 [2018-04-13 07:54:39,278 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 [2018-04-13 07:54:39,278 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,288 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:39,288 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 36 treesize of output 24 [2018-04-13 07:54:39,289 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,296 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,358 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 78 treesize of output 72 [2018-04-13 07:54:39,359 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:39,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:54:39,360 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:54:39,373 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,384 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,386 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 82 treesize of output 76 [2018-04-13 07:54:39,387 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:39,388 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 [2018-04-13 07:54:39,388 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,401 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 [2018-04-13 07:54:39,401 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,412 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,414 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 74 treesize of output 68 [2018-04-13 07:54:39,415 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 [2018-04-13 07:54:39,415 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,427 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:39,427 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 [2018-04-13 07:54:39,427 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,436 INFO L267 ElimStorePlain]: Start of recursive call 21: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:39,483 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 4 dim-2 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-04-13 07:54:39,483 INFO L202 ElimStorePlain]: Needed 23 recursive calls to eliminate 13 variables, input treesize:268, output treesize:124 [2018-04-13 07:54:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:39,559 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:39,560 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:54:39,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-13 07:54:39,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-13 07:54:39,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2018-04-13 07:54:39,560 INFO L87 Difference]: Start difference. First operand 196 states and 223 transitions. Second operand 22 states. [2018-04-13 07:54:41,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:41,668 INFO L93 Difference]: Finished difference Result 310 states and 342 transitions. [2018-04-13 07:54:41,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:54:41,668 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 50 [2018-04-13 07:54:41,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:41,669 INFO L225 Difference]: With dead ends: 310 [2018-04-13 07:54:41,669 INFO L226 Difference]: Without dead ends: 310 [2018-04-13 07:54:41,670 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=295, Invalid=1597, Unknown=0, NotChecked=0, Total=1892 [2018-04-13 07:54:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-04-13 07:54:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 194. [2018-04-13 07:54:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-04-13 07:54:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 220 transitions. [2018-04-13 07:54:41,672 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 220 transitions. Word has length 50 [2018-04-13 07:54:41,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:41,672 INFO L459 AbstractCegarLoop]: Abstraction has 194 states and 220 transitions. [2018-04-13 07:54:41,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-13 07:54:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 220 transitions. [2018-04-13 07:54:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-13 07:54:41,673 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:41,673 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-13 07:54:41,673 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:41,673 INFO L82 PathProgramCache]: Analyzing trace with hash -829914267, now seen corresponding path program 3 times [2018-04-13 07:54:41,673 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:41,673 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:41,673 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:41,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:41,674 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:41,679 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:41,681 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:41,681 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:41,681 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:41,682 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:54:41,698 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-13 07:54:41,698 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:54:41,701 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:41,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:41,708 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,711 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,711 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:41,732 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:41,733 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:41,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:54:41,734 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,741 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,742 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-13 07:54:41,762 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 [2018-04-13 07:54:41,763 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 [2018-04-13 07:54:41,763 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,764 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,770 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,770 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-13 07:54:41,801 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:41,802 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:41,802 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:41,803 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 [2018-04-13 07:54:41,803 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,808 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:40 [2018-04-13 07:54:41,829 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 [2018-04-13 07:54:41,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:41,831 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,832 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,842 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:41,844 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 58 treesize of output 59 [2018-04-13 07:54:41,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:41,847 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,852 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,860 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:68, output treesize:69 [2018-04-13 07:54:41,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2018-04-13 07:54:41,876 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 15 treesize of output 3 [2018-04-13 07:54:41,877 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,878 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:41,884 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:108, output treesize:81 [2018-04-13 07:54:41,936 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 95 treesize of output 74 [2018-04-13 07:54:41,937 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 20 treesize of output 19 [2018-04-13 07:54:41,937 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,942 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:41,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:41,948 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:98, output treesize:82 [2018-04-13 07:54:42,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2018-04-13 07:54:42,010 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:42,010 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 [2018-04-13 07:54:42,011 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:42,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:54:42,015 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:42,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:42,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:42,024 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:82, output treesize:5 [2018-04-13 07:54:42,062 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:42,062 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:42,063 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-13 07:54:42,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 07:54:42,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 07:54:42,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2018-04-13 07:54:42,063 INFO L87 Difference]: Start difference. First operand 194 states and 220 transitions. Second operand 20 states. [2018-04-13 07:54:43,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:43,169 INFO L93 Difference]: Finished difference Result 333 states and 369 transitions. [2018-04-13 07:54:43,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 07:54:43,205 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 50 [2018-04-13 07:54:43,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:43,207 INFO L225 Difference]: With dead ends: 333 [2018-04-13 07:54:43,207 INFO L226 Difference]: Without dead ends: 333 [2018-04-13 07:54:43,208 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=300, Invalid=1506, Unknown=0, NotChecked=0, Total=1806 [2018-04-13 07:54:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-04-13 07:54:43,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 219. [2018-04-13 07:54:43,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-04-13 07:54:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 251 transitions. [2018-04-13 07:54:43,211 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 251 transitions. Word has length 50 [2018-04-13 07:54:43,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:43,211 INFO L459 AbstractCegarLoop]: Abstraction has 219 states and 251 transitions. [2018-04-13 07:54:43,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 07:54:43,211 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 251 transitions. [2018-04-13 07:54:43,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-04-13 07:54:43,212 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:43,212 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-13 07:54:43,212 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:43,212 INFO L82 PathProgramCache]: Analyzing trace with hash -829914266, now seen corresponding path program 2 times [2018-04-13 07:54:43,212 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:43,212 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:43,212 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:43,212 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:54:43,213 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:43,219 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:43,224 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:43,224 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:43,224 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:43,225 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:54:43,240 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:54:43,240 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:54:43,242 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:43,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:43,244 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:43,248 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,261 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:54:43,307 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,307 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 [2018-04-13 07:54:43,307 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,320 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,321 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:54:43,322 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,330 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:27 [2018-04-13 07:54:43,357 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 [2018-04-13 07:54:43,359 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 [2018-04-13 07:54:43,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,360 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,376 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 [2018-04-13 07:54:43,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:43,378 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,380 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,390 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:62, output treesize:57 [2018-04-13 07:54:43,474 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,475 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,475 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 [2018-04-13 07:54:43,476 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,497 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,498 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,498 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,499 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,500 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 [2018-04-13 07:54:43,500 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,520 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:43,520 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:88, output treesize:95 [2018-04-13 07:54:43,574 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-04-13 07:54:43,575 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,595 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,598 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 [2018-04-13 07:54:43,600 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 [2018-04-13 07:54:43,600 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,605 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,623 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:43,626 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 [2018-04-13 07:54:43,628 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 16 treesize of output 15 [2018-04-13 07:54:43,628 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,632 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,647 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. [2018-04-13 07:54:43,648 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:123, output treesize:104 [2018-04-13 07:54:43,759 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 123 treesize of output 156 [2018-04-13 07:54:43,761 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:43,761 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,768 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 141 [2018-04-13 07:54:43,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:43,791 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,799 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,812 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. [2018-04-13 07:54:43,813 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:217, output treesize:185 [2018-04-13 07:54:43,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2018-04-13 07:54:43,902 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 [2018-04-13 07:54:43,903 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,911 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 [2018-04-13 07:54:43,911 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:43,920 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:43,920 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 [2018-04-13 07:54:43,920 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,927 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:43,942 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 [2018-04-13 07:54:43,944 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:43,944 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 [2018-04-13 07:54:43,944 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,952 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 [2018-04-13 07:54:43,952 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:54:43,956 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,957 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:43,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:43,977 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:206, output treesize:36 [2018-04-13 07:54:44,110 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:44,110 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:44,110 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:54:44,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-13 07:54:44,111 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-13 07:54:44,111 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2018-04-13 07:54:44,111 INFO L87 Difference]: Start difference. First operand 219 states and 251 transitions. Second operand 22 states. [2018-04-13 07:54:46,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:46,307 INFO L93 Difference]: Finished difference Result 332 states and 371 transitions. [2018-04-13 07:54:46,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-13 07:54:46,308 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 50 [2018-04-13 07:54:46,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:46,308 INFO L225 Difference]: With dead ends: 332 [2018-04-13 07:54:46,308 INFO L226 Difference]: Without dead ends: 332 [2018-04-13 07:54:46,309 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=282, Invalid=1524, Unknown=0, NotChecked=0, Total=1806 [2018-04-13 07:54:46,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2018-04-13 07:54:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 205. [2018-04-13 07:54:46,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-04-13 07:54:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 233 transitions. [2018-04-13 07:54:46,311 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 233 transitions. Word has length 50 [2018-04-13 07:54:46,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:46,311 INFO L459 AbstractCegarLoop]: Abstraction has 205 states and 233 transitions. [2018-04-13 07:54:46,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-13 07:54:46,311 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 233 transitions. [2018-04-13 07:54:46,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-13 07:54:46,312 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:46,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:54:46,312 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:46,312 INFO L82 PathProgramCache]: Analyzing trace with hash -606899218, now seen corresponding path program 1 times [2018-04-13 07:54:46,312 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:46,312 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:46,313 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:46,313 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:54:46,313 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:46,317 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:46,319 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:46,319 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:46,319 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:46,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:46,331 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:46,346 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:46,346 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:46,347 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:46,348 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 [2018-04-13 07:54:46,348 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:46,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:46,353 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-13 07:54:46,374 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 [2018-04-13 07:54:46,375 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 [2018-04-13 07:54:46,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:46,376 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:46,381 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:46,381 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-13 07:54:46,412 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 [2018-04-13 07:54:46,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:46,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:46,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:46,421 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. [2018-04-13 07:54:46,421 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:48 [2018-04-13 07:54:46,457 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 [2018-04-13 07:54:46,458 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 [2018-04-13 07:54:46,458 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:46,466 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 [2018-04-13 07:54:46,467 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:46,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:46,483 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. [2018-04-13 07:54:46,483 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:57, output treesize:40 [2018-04-13 07:54:46,577 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:46,578 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:46,579 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 [2018-04-13 07:54:46,579 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:46,587 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:46,588 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2018-04-13 07:54:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:46,620 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:46,620 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-13 07:54:46,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 07:54:46,620 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 07:54:46,620 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-04-13 07:54:46,621 INFO L87 Difference]: Start difference. First operand 205 states and 233 transitions. Second operand 18 states. [2018-04-13 07:54:47,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:47,318 INFO L93 Difference]: Finished difference Result 265 states and 295 transitions. [2018-04-13 07:54:47,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-13 07:54:47,318 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 52 [2018-04-13 07:54:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:47,319 INFO L225 Difference]: With dead ends: 265 [2018-04-13 07:54:47,319 INFO L226 Difference]: Without dead ends: 265 [2018-04-13 07:54:47,319 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1031, Unknown=0, NotChecked=0, Total=1260 [2018-04-13 07:54:47,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-04-13 07:54:47,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 222. [2018-04-13 07:54:47,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-04-13 07:54:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 251 transitions. [2018-04-13 07:54:47,321 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 251 transitions. Word has length 52 [2018-04-13 07:54:47,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:47,321 INFO L459 AbstractCegarLoop]: Abstraction has 222 states and 251 transitions. [2018-04-13 07:54:47,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 07:54:47,321 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 251 transitions. [2018-04-13 07:54:47,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-13 07:54:47,322 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:47,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:54:47,322 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:47,322 INFO L82 PathProgramCache]: Analyzing trace with hash -606899217, now seen corresponding path program 1 times [2018-04-13 07:54:47,322 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:47,322 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:47,322 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:47,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:47,322 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:47,327 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:47,328 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:47,328 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:47,328 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:47,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:47,340 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:47,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:47,342 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,344 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:47,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:47,363 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,370 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:47,371 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:47,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:54:47,371 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,377 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-04-13 07:54:47,398 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 [2018-04-13 07:54:47,400 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 10 treesize of output 9 [2018-04-13 07:54:47,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,401 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,413 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 [2018-04-13 07:54:47,414 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 10 treesize of output 9 [2018-04-13 07:54:47,414 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,415 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,422 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:48, output treesize:40 [2018-04-13 07:54:47,472 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 44 treesize of output 45 [2018-04-13 07:54:47,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:47,474 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,478 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,491 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 [2018-04-13 07:54:47,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:47,493 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,499 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,509 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. [2018-04-13 07:54:47,510 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:99, output treesize:79 [2018-04-13 07:54:47,579 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 [2018-04-13 07:54:47,585 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 [2018-04-13 07:54:47,585 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:47,600 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 [2018-04-13 07:54:47,600 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,610 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:47,629 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 54 treesize of output 46 [2018-04-13 07:54:47,630 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 [2018-04-13 07:54:47,630 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,638 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:47,639 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 [2018-04-13 07:54:47,639 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,643 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,645 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 46 treesize of output 38 [2018-04-13 07:54:47,647 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 [2018-04-13 07:54:47,647 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:47,656 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 [2018-04-13 07:54:47,657 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-13 07:54:47,664 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:47,686 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. [2018-04-13 07:54:47,686 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:97, output treesize:43 [2018-04-13 07:54:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:47,780 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:47,780 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-13 07:54:47,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 07:54:47,780 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 07:54:47,780 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2018-04-13 07:54:47,780 INFO L87 Difference]: Start difference. First operand 222 states and 251 transitions. Second operand 18 states. [2018-04-13 07:54:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:48,771 INFO L93 Difference]: Finished difference Result 281 states and 311 transitions. [2018-04-13 07:54:48,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-13 07:54:48,771 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 52 [2018-04-13 07:54:48,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:48,772 INFO L225 Difference]: With dead ends: 281 [2018-04-13 07:54:48,772 INFO L226 Difference]: Without dead ends: 281 [2018-04-13 07:54:48,773 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=1175, Unknown=0, NotChecked=0, Total=1406 [2018-04-13 07:54:48,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2018-04-13 07:54:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 220. [2018-04-13 07:54:48,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-04-13 07:54:48,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 248 transitions. [2018-04-13 07:54:48,777 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 248 transitions. Word has length 52 [2018-04-13 07:54:48,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:48,777 INFO L459 AbstractCegarLoop]: Abstraction has 220 states and 248 transitions. [2018-04-13 07:54:48,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 07:54:48,777 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 248 transitions. [2018-04-13 07:54:48,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-13 07:54:48,778 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:48,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:54:48,778 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:48,778 INFO L82 PathProgramCache]: Analyzing trace with hash -644293180, now seen corresponding path program 1 times [2018-04-13 07:54:48,778 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:48,778 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:48,779 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:48,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:48,779 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:48,786 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:48,787 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:48,788 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:48,788 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:48,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:48,805 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:48,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:48,824 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:48,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:48,827 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:48,852 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:48,853 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:48,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:54:48,854 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:48,861 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:48,861 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-13 07:54:48,888 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 [2018-04-13 07:54:48,890 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 [2018-04-13 07:54:48,890 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:48,892 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:48,900 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:48,901 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-13 07:54:48,953 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 [2018-04-13 07:54:48,955 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:48,955 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:48,960 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:48,968 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. [2018-04-13 07:54:48,969 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:48 [2018-04-13 07:54:49,005 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 [2018-04-13 07:54:49,009 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 [2018-04-13 07:54:49,010 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:49,017 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 [2018-04-13 07:54:49,017 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:49,022 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:49,029 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. [2018-04-13 07:54:49,029 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:57, output treesize:40 [2018-04-13 07:54:49,084 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:49,084 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 15 [2018-04-13 07:54:49,084 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:49,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:49,087 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2018-04-13 07:54:49,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:49,119 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:49,119 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-13 07:54:49,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 07:54:49,120 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 07:54:49,120 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2018-04-13 07:54:49,120 INFO L87 Difference]: Start difference. First operand 220 states and 248 transitions. Second operand 18 states. [2018-04-13 07:54:49,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:49,952 INFO L93 Difference]: Finished difference Result 274 states and 306 transitions. [2018-04-13 07:54:49,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-13 07:54:49,953 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 52 [2018-04-13 07:54:49,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:49,953 INFO L225 Difference]: With dead ends: 274 [2018-04-13 07:54:49,953 INFO L226 Difference]: Without dead ends: 274 [2018-04-13 07:54:49,954 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=211, Invalid=911, Unknown=0, NotChecked=0, Total=1122 [2018-04-13 07:54:49,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-04-13 07:54:49,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 228. [2018-04-13 07:54:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-04-13 07:54:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 257 transitions. [2018-04-13 07:54:49,956 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 257 transitions. Word has length 52 [2018-04-13 07:54:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:49,957 INFO L459 AbstractCegarLoop]: Abstraction has 228 states and 257 transitions. [2018-04-13 07:54:49,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 07:54:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 257 transitions. [2018-04-13 07:54:49,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-13 07:54:49,957 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:49,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:54:49,958 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:49,958 INFO L82 PathProgramCache]: Analyzing trace with hash -644293179, now seen corresponding path program 1 times [2018-04-13 07:54:49,958 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:49,958 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:49,959 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:49,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:49,959 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:49,966 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:49,967 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:49,968 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:49,968 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:49,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:49,986 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:50,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:50,000 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,003 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,003 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:50,029 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:50,029 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:50,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:54:50,030 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,036 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,036 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-04-13 07:54:50,061 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 [2018-04-13 07:54:50,063 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 [2018-04-13 07:54:50,063 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,075 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 [2018-04-13 07:54:50,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:50,077 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,078 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,087 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:40, output treesize:29 [2018-04-13 07:54:50,158 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 [2018-04-13 07:54:50,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:50,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,167 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,185 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 [2018-04-13 07:54:50,187 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:50,187 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,191 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,200 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. [2018-04-13 07:54:50,201 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:92, output treesize:72 [2018-04-13 07:54:50,244 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 [2018-04-13 07:54:50,249 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 40 treesize of output 33 [2018-04-13 07:54:50,249 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:50,260 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 [2018-04-13 07:54:50,260 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,268 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:50,285 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 39 treesize of output 33 [2018-04-13 07:54:50,288 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 [2018-04-13 07:54:50,288 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,299 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 [2018-04-13 07:54:50,299 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 07:54:50,304 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:50,306 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 47 treesize of output 41 [2018-04-13 07:54:50,307 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:50,308 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 [2018-04-13 07:54:50,308 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,313 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 [2018-04-13 07:54:50,313 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,316 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:50,331 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. [2018-04-13 07:54:50,331 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:90, output treesize:40 [2018-04-13 07:54:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:50,410 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:50,410 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-13 07:54:50,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 07:54:50,410 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 07:54:50,410 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2018-04-13 07:54:50,410 INFO L87 Difference]: Start difference. First operand 228 states and 257 transitions. Second operand 18 states. [2018-04-13 07:54:51,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:51,433 INFO L93 Difference]: Finished difference Result 294 states and 325 transitions. [2018-04-13 07:54:51,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:54:51,434 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 52 [2018-04-13 07:54:51,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:51,434 INFO L225 Difference]: With dead ends: 294 [2018-04-13 07:54:51,435 INFO L226 Difference]: Without dead ends: 294 [2018-04-13 07:54:51,435 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=259, Invalid=1301, Unknown=0, NotChecked=0, Total=1560 [2018-04-13 07:54:51,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-04-13 07:54:51,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 211. [2018-04-13 07:54:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-04-13 07:54:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 239 transitions. [2018-04-13 07:54:51,438 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 239 transitions. Word has length 52 [2018-04-13 07:54:51,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:51,439 INFO L459 AbstractCegarLoop]: Abstraction has 211 states and 239 transitions. [2018-04-13 07:54:51,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 07:54:51,439 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 239 transitions. [2018-04-13 07:54:51,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-13 07:54:51,439 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:51,439 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-13 07:54:51,439 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:51,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1749940967, now seen corresponding path program 3 times [2018-04-13 07:54:51,440 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:51,440 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:51,440 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:51,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:51,440 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:51,449 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:51,452 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:51,452 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:51,452 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:51,453 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:54:51,474 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-13 07:54:51,474 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:54:51,476 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:51,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:51,477 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,480 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:54:51,500 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:51,501 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:51,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:54:51,501 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,505 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,506 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-04-13 07:54:51,531 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 [2018-04-13 07:54:51,535 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 [2018-04-13 07:54:51,535 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,536 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:23 [2018-04-13 07:54:51,618 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:51,619 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:51,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:54:51,620 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,629 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:51,629 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:42, output treesize:32 [2018-04-13 07:54:51,669 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 [2018-04-13 07:54:51,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:51,671 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,673 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,687 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:51,690 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 48 treesize of output 49 [2018-04-13 07:54:51,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:51,693 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,699 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:51,710 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:49 [2018-04-13 07:54:51,736 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 31 treesize of output 15 [2018-04-13 07:54:51,739 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 [2018-04-13 07:54:51,739 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:51,748 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:61, output treesize:34 [2018-04-13 07:54:51,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:54:51,799 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:54:51,799 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,804 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,814 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:51,814 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:41 [2018-04-13 07:54:51,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 43 [2018-04-13 07:54:51,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:51,864 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:51,883 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:51,884 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2018-04-13 07:54:51,884 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:51,896 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:51,917 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 2 xjuncts. [2018-04-13 07:54:51,918 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:49, output treesize:81 [2018-04-13 07:54:52,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 56 [2018-04-13 07:54:52,125 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 47 treesize of output 42 [2018-04-13 07:54:52,125 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:52,170 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 48 treesize of output 41 [2018-04-13 07:54:52,170 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:52,185 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:52,209 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 42 treesize of output 38 [2018-04-13 07:54:52,211 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 [2018-04-13 07:54:52,211 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:52,217 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:52,241 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-04-13 07:54:52,241 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:95, output treesize:115 [2018-04-13 07:54:52,345 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 36 treesize of output 32 [2018-04-13 07:54:52,346 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:52,347 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 23 treesize of output 15 [2018-04-13 07:54:52,347 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:52,350 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:52,354 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:52,354 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:46, output treesize:5 [2018-04-13 07:54:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:52,392 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:52,392 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-13 07:54:52,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 07:54:52,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 07:54:52,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2018-04-13 07:54:52,393 INFO L87 Difference]: Start difference. First operand 211 states and 239 transitions. Second operand 24 states. [2018-04-13 07:54:54,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:54,081 INFO L93 Difference]: Finished difference Result 313 states and 346 transitions. [2018-04-13 07:54:54,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-13 07:54:54,081 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 53 [2018-04-13 07:54:54,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:54,082 INFO L225 Difference]: With dead ends: 313 [2018-04-13 07:54:54,082 INFO L226 Difference]: Without dead ends: 313 [2018-04-13 07:54:54,083 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=416, Invalid=2340, Unknown=0, NotChecked=0, Total=2756 [2018-04-13 07:54:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-04-13 07:54:54,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 216. [2018-04-13 07:54:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-04-13 07:54:54,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 245 transitions. [2018-04-13 07:54:54,086 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 245 transitions. Word has length 53 [2018-04-13 07:54:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:54,086 INFO L459 AbstractCegarLoop]: Abstraction has 216 states and 245 transitions. [2018-04-13 07:54:54,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 07:54:54,087 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 245 transitions. [2018-04-13 07:54:54,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-13 07:54:54,087 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:54,087 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-13 07:54:54,087 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:54,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1749940968, now seen corresponding path program 2 times [2018-04-13 07:54:54,088 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:54,088 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:54,088 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:54,088 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:54:54,088 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:54,098 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:54,103 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:54,103 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:54,103 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:54,104 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:54:54,126 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:54:54,126 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:54:54,129 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:54,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:54,131 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,132 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,132 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-13 07:54:54,152 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:54,153 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 [2018-04-13 07:54:54,153 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,166 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:54,167 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:54,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:54:54,168 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,178 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,179 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-13 07:54:54,216 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 [2018-04-13 07:54:54,219 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 10 treesize of output 9 [2018-04-13 07:54:54,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,221 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,239 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 [2018-04-13 07:54:54,241 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 [2018-04-13 07:54:54,241 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,243 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,258 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:64, output treesize:65 [2018-04-13 07:54:54,310 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:54,310 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:54,315 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:54,316 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 [2018-04-13 07:54:54,316 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,330 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 [2018-04-13 07:54:54,330 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,342 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:54,342 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:85, output treesize:77 [2018-04-13 07:54:54,381 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:54,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 30 [2018-04-13 07:54:54,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-04-13 07:54:54,385 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,389 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,411 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:54,413 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 [2018-04-13 07:54:54,415 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 [2018-04-13 07:54:54,415 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,423 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:54,437 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:100, output treesize:107 [2018-04-13 07:54:54,522 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 123 treesize of output 156 [2018-04-13 07:54:54,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:54,524 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,533 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,555 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 174 treesize of output 141 [2018-04-13 07:54:54,557 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:54,557 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,567 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,583 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. [2018-04-13 07:54:54,583 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:214, output treesize:182 [2018-04-13 07:54:54,662 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 [2018-04-13 07:54:54,664 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 [2018-04-13 07:54:54,664 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:54,676 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:54,676 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 82 treesize of output 58 [2018-04-13 07:54:54,677 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,687 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 [2018-04-13 07:54:54,688 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,695 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:54,714 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 [2018-04-13 07:54:54,716 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 19 treesize of output 5 [2018-04-13 07:54:54,716 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,722 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:54:54,723 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 [2018-04-13 07:54:54,723 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:54:54,727 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,728 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:54,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:54,740 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:210, output treesize:36 [2018-04-13 07:54:54,822 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:54,823 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:54,823 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-13 07:54:54,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 07:54:54,823 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 07:54:54,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2018-04-13 07:54:54,823 INFO L87 Difference]: Start difference. First operand 216 states and 245 transitions. Second operand 21 states. [2018-04-13 07:54:56,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:56,883 INFO L93 Difference]: Finished difference Result 315 states and 348 transitions. [2018-04-13 07:54:56,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-13 07:54:56,883 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 53 [2018-04-13 07:54:56,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:56,884 INFO L225 Difference]: With dead ends: 315 [2018-04-13 07:54:56,884 INFO L226 Difference]: Without dead ends: 315 [2018-04-13 07:54:56,884 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=270, Invalid=1370, Unknown=0, NotChecked=0, Total=1640 [2018-04-13 07:54:56,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2018-04-13 07:54:56,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 216. [2018-04-13 07:54:56,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-04-13 07:54:56,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 245 transitions. [2018-04-13 07:54:56,887 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 245 transitions. Word has length 53 [2018-04-13 07:54:56,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:56,887 INFO L459 AbstractCegarLoop]: Abstraction has 216 states and 245 transitions. [2018-04-13 07:54:56,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 07:54:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 245 transitions. [2018-04-13 07:54:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-13 07:54:56,887 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:56,887 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] [2018-04-13 07:54:56,887 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:56,888 INFO L82 PathProgramCache]: Analyzing trace with hash 590728145, now seen corresponding path program 1 times [2018-04-13 07:54:56,888 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:56,888 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:56,888 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:56,888 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:54:56,888 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:56,895 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:56,897 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:56,897 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:56,897 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:56,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:56,917 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:56,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:56,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:56,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:56,928 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:56,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:56,931 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:54:56,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:54:56,950 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 8 treesize of output 7 [2018-04-13 07:54:56,950 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:56,952 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:56,958 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:56,959 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:33, output treesize:24 [2018-04-13 07:54:56,972 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:56,973 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:56,973 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 [2018-04-13 07:54:56,974 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:56,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:54:56,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:56,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:56,997 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:38 [2018-04-13 07:54:57,031 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 13 treesize of output 10 [2018-04-13 07:54:57,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:57,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,034 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,045 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,045 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:63 [2018-04-13 07:54:57,096 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:57,099 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 [2018-04-13 07:54:57,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:57,101 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,104 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:57,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:80, output treesize:82 [2018-04-13 07:54:57,130 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:57,131 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:57,131 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:57,132 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 [2018-04-13 07:54:57,132 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,144 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 [2018-04-13 07:54:57,144 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:57,157 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:93, output treesize:85 [2018-04-13 07:54:57,205 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:57,208 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 67 treesize of output 68 [2018-04-13 07:54:57,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:54:57,209 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,217 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:57,230 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:98, output treesize:103 [2018-04-13 07:54:57,250 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 105 treesize of output 72 [2018-04-13 07:54:57,252 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 37 treesize of output 18 [2018-04-13 07:54:57,252 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,258 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 37 treesize of output 21 [2018-04-13 07:54:57,258 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:57,263 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:57,273 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. [2018-04-13 07:54:57,273 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:127, output treesize:52 [2018-04-13 07:54:57,329 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 [2018-04-13 07:54:57,330 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 8 treesize of output 7 [2018-04-13 07:54:57,331 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,335 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,344 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. [2018-04-13 07:54:57,344 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:63, output treesize:59 [2018-04-13 07:54:57,422 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 [2018-04-13 07:54:57,423 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 [2018-04-13 07:54:57,423 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,431 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 11 treesize of output 12 [2018-04-13 07:54:57,432 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:54:57,436 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 [2018-04-13 07:54:57,436 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:57,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:57,447 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:57,447 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:94 [2018-04-13 07:54:57,539 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:57,539 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:57,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-13 07:54:57,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-13 07:54:57,540 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-13 07:54:57,540 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2018-04-13 07:54:57,540 INFO L87 Difference]: Start difference. First operand 216 states and 245 transitions. Second operand 22 states. [2018-04-13 07:54:59,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:54:59,092 INFO L93 Difference]: Finished difference Result 338 states and 378 transitions. [2018-04-13 07:54:59,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:54:59,120 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 53 [2018-04-13 07:54:59,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:54:59,121 INFO L225 Difference]: With dead ends: 338 [2018-04-13 07:54:59,121 INFO L226 Difference]: Without dead ends: 337 [2018-04-13 07:54:59,122 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=292, Invalid=1600, Unknown=0, NotChecked=0, Total=1892 [2018-04-13 07:54:59,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-04-13 07:54:59,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 229. [2018-04-13 07:54:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-04-13 07:54:59,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 261 transitions. [2018-04-13 07:54:59,125 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 261 transitions. Word has length 53 [2018-04-13 07:54:59,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:54:59,125 INFO L459 AbstractCegarLoop]: Abstraction has 229 states and 261 transitions. [2018-04-13 07:54:59,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-13 07:54:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 261 transitions. [2018-04-13 07:54:59,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-04-13 07:54:59,126 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:54:59,126 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-13 07:54:59,126 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:54:59,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1681430233, now seen corresponding path program 2 times [2018-04-13 07:54:59,127 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:54:59,127 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:54:59,127 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:59,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:54:59,127 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:54:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:54:59,135 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:54:59,137 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:54:59,137 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:54:59,137 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:54:59,137 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:54:59,152 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:54:59,153 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:54:59,155 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:54:59,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:54:59,158 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,170 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 6 treesize of output 5 [2018-04-13 07:54:59,171 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,173 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:54:59,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:54:59,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:54:59,191 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,193 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,199 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,199 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:33, output treesize:24 [2018-04-13 07:54:59,211 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,212 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 [2018-04-13 07:54:59,212 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,225 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,226 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,227 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 [2018-04-13 07:54:59,227 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,237 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,237 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:38 [2018-04-13 07:54:59,273 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 [2018-04-13 07:54:59,274 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 [2018-04-13 07:54:59,274 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,276 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:58, output treesize:63 [2018-04-13 07:54:59,331 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,333 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 [2018-04-13 07:54:59,334 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:54:59,334 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,337 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:59,346 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:80, output treesize:82 [2018-04-13 07:54:59,360 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,361 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,361 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 [2018-04-13 07:54:59,362 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,376 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,376 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,377 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 [2018-04-13 07:54:59,377 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,387 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:59,387 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:93, output treesize:85 [2018-04-13 07:54:59,419 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:54:59,421 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 67 treesize of output 68 [2018-04-13 07:54:59,422 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 [2018-04-13 07:54:59,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,428 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,439 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:59,439 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:98, output treesize:103 [2018-04-13 07:54:59,457 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 105 treesize of output 72 [2018-04-13 07:54:59,459 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 [2018-04-13 07:54:59,459 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:59,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 14 [2018-04-13 07:54:59,466 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,470 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:54:59,478 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. [2018-04-13 07:54:59,478 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:127, output treesize:52 [2018-04-13 07:54:59,548 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 [2018-04-13 07:54:59,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:54:59,549 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,555 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,567 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. [2018-04-13 07:54:59,567 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:63, output treesize:59 [2018-04-13 07:54:59,665 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 [2018-04-13 07:54:59,667 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 5 treesize of output 1 [2018-04-13 07:54:59,667 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,675 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:54:59,676 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:54:59,680 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 [2018-04-13 07:54:59,680 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:54:59,682 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:54:59,692 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:54:59,692 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:69, output treesize:94 [2018-04-13 07:54:59,783 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:54:59,784 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:54:59,784 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-13 07:54:59,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-13 07:54:59,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-13 07:54:59,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2018-04-13 07:54:59,784 INFO L87 Difference]: Start difference. First operand 229 states and 261 transitions. Second operand 22 states. [2018-04-13 07:55:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:01,215 INFO L93 Difference]: Finished difference Result 348 states and 388 transitions. [2018-04-13 07:55:01,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:55:01,215 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 53 [2018-04-13 07:55:01,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:01,216 INFO L225 Difference]: With dead ends: 348 [2018-04-13 07:55:01,216 INFO L226 Difference]: Without dead ends: 347 [2018-04-13 07:55:01,216 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=292, Invalid=1600, Unknown=0, NotChecked=0, Total=1892 [2018-04-13 07:55:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2018-04-13 07:55:01,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 219. [2018-04-13 07:55:01,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-04-13 07:55:01,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 248 transitions. [2018-04-13 07:55:01,220 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 248 transitions. Word has length 53 [2018-04-13 07:55:01,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:01,220 INFO L459 AbstractCegarLoop]: Abstraction has 219 states and 248 transitions. [2018-04-13 07:55:01,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-13 07:55:01,220 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 248 transitions. [2018-04-13 07:55:01,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-13 07:55:01,221 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:01,221 INFO L355 BasicCegarLoop]: trace histogram [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, 1] [2018-04-13 07:55:01,221 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:01,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1484123463, now seen corresponding path program 2 times [2018-04-13 07:55:01,221 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:01,221 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:01,221 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:01,221 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:01,221 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:01,227 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:01,229 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:01,230 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:01,230 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:01,230 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:55:01,246 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:55:01,246 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:01,249 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:01,253 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 6 treesize of output 5 [2018-04-13 07:55:01,253 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:01,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,258 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:55:01,277 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,277 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 [2018-04-13 07:55:01,277 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,283 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,283 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:55:01,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,287 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-13 07:55:01,303 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 [2018-04-13 07:55:01,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:01,305 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,306 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,314 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,314 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:46, output treesize:45 [2018-04-13 07:55:01,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,376 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,377 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 [2018-04-13 07:55:01,377 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,394 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,395 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,396 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,396 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,397 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 [2018-04-13 07:55:01,397 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,413 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:01,413 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:79, output treesize:86 [2018-04-13 07:55:01,465 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,467 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,467 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 [2018-04-13 07:55:01,469 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 [2018-04-13 07:55:01,470 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,477 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,501 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 [2018-04-13 07:55:01,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:01,503 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,504 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,521 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:01,521 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:116, output treesize:119 [2018-04-13 07:55:01,556 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 15 [2018-04-13 07:55:01,557 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 [2018-04-13 07:55:01,558 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,559 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,575 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. [2018-04-13 07:55:01,575 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:176, output treesize:149 [2018-04-13 07:55:01,679 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,681 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:01,683 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 143 treesize of output 128 [2018-04-13 07:55:01,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:01,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,694 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:01,706 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. [2018-04-13 07:55:01,706 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:166, output treesize:150 [2018-04-13 07:55:02,047 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:02,048 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:02,048 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2018-04-13 07:55:02,048 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:02,087 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:02,088 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:02,090 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:02,132 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 101 treesize of output 88 [2018-04-13 07:55:02,141 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:02,149 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 45 treesize of output 41 [2018-04-13 07:55:02,151 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:02,182 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:02,218 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 48 treesize of output 44 [2018-04-13 07:55:02,219 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:02,220 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:02,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2018-04-13 07:55:02,221 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:02,238 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:02,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:02,263 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:191, output treesize:57 [2018-04-13 07:55:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:02,335 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:02,336 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 07:55:02,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 07:55:02,336 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 07:55:02,336 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2018-04-13 07:55:02,336 INFO L87 Difference]: Start difference. First operand 219 states and 248 transitions. Second operand 25 states. [2018-04-13 07:55:04,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:04,887 INFO L93 Difference]: Finished difference Result 324 states and 364 transitions. [2018-04-13 07:55:04,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 07:55:04,888 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 55 [2018-04-13 07:55:04,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:04,888 INFO L225 Difference]: With dead ends: 324 [2018-04-13 07:55:04,889 INFO L226 Difference]: Without dead ends: 324 [2018-04-13 07:55:04,889 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=369, Invalid=2081, Unknown=0, NotChecked=0, Total=2450 [2018-04-13 07:55:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2018-04-13 07:55:04,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 238. [2018-04-13 07:55:04,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-04-13 07:55:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 272 transitions. [2018-04-13 07:55:04,891 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 272 transitions. Word has length 55 [2018-04-13 07:55:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:04,891 INFO L459 AbstractCegarLoop]: Abstraction has 238 states and 272 transitions. [2018-04-13 07:55:04,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 07:55:04,892 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 272 transitions. [2018-04-13 07:55:04,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-13 07:55:04,892 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:04,892 INFO L355 BasicCegarLoop]: trace histogram [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, 1] [2018-04-13 07:55:04,892 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:04,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1484123462, now seen corresponding path program 2 times [2018-04-13 07:55:04,893 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:04,893 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:04,893 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:04,893 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:04,893 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:04,899 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:04,903 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:04,903 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:04,903 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:04,904 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:55:04,919 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:55:04,919 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:04,921 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:04,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:04,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:04,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:04,926 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:04,929 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:04,929 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:55:04,957 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:04,957 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:04,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:55:04,958 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:04,968 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 [2018-04-13 07:55:04,968 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:04,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:04,975 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:27 [2018-04-13 07:55:05,012 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 [2018-04-13 07:55:05,014 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 [2018-04-13 07:55:05,014 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,016 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,027 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 [2018-04-13 07:55:05,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:05,029 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,030 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,039 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:50 [2018-04-13 07:55:05,115 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,116 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,116 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,117 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,117 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 [2018-04-13 07:55:05,117 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,134 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 [2018-04-13 07:55:05,135 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,156 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:05,156 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:78, output treesize:70 [2018-04-13 07:55:05,237 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,240 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 [2018-04-13 07:55:05,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:05,241 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,245 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,262 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,264 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 71 [2018-04-13 07:55:05,266 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 [2018-04-13 07:55:05,267 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,273 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:05,286 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:100, output treesize:97 [2018-04-13 07:55:05,393 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,398 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 123 treesize of output 156 [2018-04-13 07:55:05,400 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 34 treesize of output 33 [2018-04-13 07:55:05,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,408 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,425 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,428 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,430 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 177 treesize of output 162 [2018-04-13 07:55:05,431 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 [2018-04-13 07:55:05,432 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,443 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,458 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. [2018-04-13 07:55:05,458 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:216, output treesize:184 [2018-04-13 07:55:05,765 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,765 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:05,766 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:05,768 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 191 treesize of output 172 [2018-04-13 07:55:05,770 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:05,775 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 134 treesize of output 98 [2018-04-13 07:55:05,776 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:05,804 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 75 treesize of output 62 [2018-04-13 07:55:05,804 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,805 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 81 treesize of output 68 [2018-04-13 07:55:05,805 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,828 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:05,828 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 86 treesize of output 70 [2018-04-13 07:55:05,828 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,835 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:05,841 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 92 treesize of output 84 [2018-04-13 07:55:05,842 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:05,875 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:05,909 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 81 treesize of output 69 [2018-04-13 07:55:05,911 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:05,911 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 [2018-04-13 07:55:05,911 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,921 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:05,922 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 26 treesize of output 18 [2018-04-13 07:55:05,922 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,930 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 [2018-04-13 07:55:05,930 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,936 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,939 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 81 treesize of output 69 [2018-04-13 07:55:05,941 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:05,941 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 26 treesize of output 18 [2018-04-13 07:55:05,941 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,955 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:05,955 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 [2018-04-13 07:55:05,955 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,966 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-13 07:55:05,966 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,972 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:05,995 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 2 xjuncts. [2018-04-13 07:55:05,995 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 7 variables, input treesize:236, output treesize:83 [2018-04-13 07:55:06,152 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:06,153 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:06,153 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 07:55:06,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 07:55:06,153 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 07:55:06,153 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2018-04-13 07:55:06,154 INFO L87 Difference]: Start difference. First operand 238 states and 272 transitions. Second operand 25 states. [2018-04-13 07:55:19,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:19,931 INFO L93 Difference]: Finished difference Result 357 states and 399 transitions. [2018-04-13 07:55:19,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-13 07:55:19,931 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 55 [2018-04-13 07:55:19,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:19,932 INFO L225 Difference]: With dead ends: 357 [2018-04-13 07:55:19,932 INFO L226 Difference]: Without dead ends: 357 [2018-04-13 07:55:19,933 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=305, Invalid=1950, Unknown=1, NotChecked=0, Total=2256 [2018-04-13 07:55:19,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-04-13 07:55:19,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 234. [2018-04-13 07:55:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-04-13 07:55:19,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 267 transitions. [2018-04-13 07:55:19,935 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 267 transitions. Word has length 55 [2018-04-13 07:55:19,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:19,935 INFO L459 AbstractCegarLoop]: Abstraction has 234 states and 267 transitions. [2018-04-13 07:55:19,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 07:55:19,935 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 267 transitions. [2018-04-13 07:55:19,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-13 07:55:19,936 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:19,936 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2018-04-13 07:55:19,936 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:19,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1110028943, now seen corresponding path program 4 times [2018-04-13 07:55:19,936 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:19,936 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:19,937 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:19,937 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:19,937 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:19,943 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:19,948 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:19,948 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:19,948 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:19,949 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 07:55:19,965 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 07:55:19,965 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:19,968 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:19,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:19,970 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:19,972 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:19,972 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:55:19,988 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:19,989 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:19,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:55:19,989 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:19,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:19,998 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,004 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,004 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2018-04-13 07:55:20,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:55:20,028 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 [2018-04-13 07:55:20,028 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,029 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,037 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,037 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:47 [2018-04-13 07:55:20,088 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,089 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 [2018-04-13 07:55:20,089 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,101 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,101 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,102 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,102 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 [2018-04-13 07:55:20,102 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,113 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:70, output treesize:77 [2018-04-13 07:55:20,152 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,154 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,154 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 [2018-04-13 07:55:20,156 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 [2018-04-13 07:55:20,156 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,163 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,175 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,175 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:102, output treesize:92 [2018-04-13 07:55:20,241 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,244 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,246 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 145 treesize of output 130 [2018-04-13 07:55:20,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:20,248 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,257 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,268 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. [2018-04-13 07:55:20,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:156, output treesize:140 [2018-04-13 07:55:20,412 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:20,412 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 49 treesize of output 38 [2018-04-13 07:55:20,412 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,427 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:20,428 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,429 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:20,430 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 91 treesize of output 82 [2018-04-13 07:55:20,433 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:20,436 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 37 treesize of output 39 [2018-04-13 07:55:20,437 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:20,450 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 [2018-04-13 07:55:20,451 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,462 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:20,463 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 42 treesize of output 30 [2018-04-13 07:55:20,463 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:20,465 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:20,468 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 48 treesize of output 44 [2018-04-13 07:55:20,469 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:20,482 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:20,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:20,498 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:156, output treesize:57 [2018-04-13 07:55:20,591 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:20,591 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:20,591 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-13 07:55:20,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 07:55:20,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 07:55:20,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2018-04-13 07:55:20,592 INFO L87 Difference]: Start difference. First operand 234 states and 267 transitions. Second operand 24 states. [2018-04-13 07:55:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:23,294 INFO L93 Difference]: Finished difference Result 347 states and 388 transitions. [2018-04-13 07:55:23,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:55:23,295 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 55 [2018-04-13 07:55:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:23,296 INFO L225 Difference]: With dead ends: 347 [2018-04-13 07:55:23,296 INFO L226 Difference]: Without dead ends: 347 [2018-04-13 07:55:23,296 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=328, Invalid=1834, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 07:55:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2018-04-13 07:55:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 243. [2018-04-13 07:55:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-04-13 07:55:23,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 278 transitions. [2018-04-13 07:55:23,299 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 278 transitions. Word has length 55 [2018-04-13 07:55:23,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:23,300 INFO L459 AbstractCegarLoop]: Abstraction has 243 states and 278 transitions. [2018-04-13 07:55:23,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 07:55:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 278 transitions. [2018-04-13 07:55:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-13 07:55:23,300 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:23,300 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2018-04-13 07:55:23,301 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:23,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1110028944, now seen corresponding path program 3 times [2018-04-13 07:55:23,301 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:23,301 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:23,301 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:23,301 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:23,301 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:23,311 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:23,315 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:23,315 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:23,315 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:23,315 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:55:23,343 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-13 07:55:23,343 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:23,346 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:23,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:23,348 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,351 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,351 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:55:23,377 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 [2018-04-13 07:55:23,377 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,388 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,389 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:55:23,389 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,398 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2018-04-13 07:55:23,425 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 [2018-04-13 07:55:23,427 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 [2018-04-13 07:55:23,427 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,429 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,441 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 [2018-04-13 07:55:23,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:23,443 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,444 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,454 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,454 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:53, output treesize:48 [2018-04-13 07:55:23,527 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,528 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 [2018-04-13 07:55:23,528 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,547 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,548 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,548 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,549 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,550 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 [2018-04-13 07:55:23,550 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,576 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:23,576 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:82, output treesize:89 [2018-04-13 07:55:23,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-04-13 07:55:23,633 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,656 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,657 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 34 treesize of output 46 [2018-04-13 07:55:23,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:23,659 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,664 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,686 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 [2018-04-13 07:55:23,688 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 16 treesize of output 15 [2018-04-13 07:55:23,688 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,692 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,707 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. [2018-04-13 07:55:23,708 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:124, output treesize:95 [2018-04-13 07:55:23,867 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,874 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 123 treesize of output 156 [2018-04-13 07:55:23,876 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 34 treesize of output 33 [2018-04-13 07:55:23,876 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,885 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,905 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,908 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:23,910 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 177 treesize of output 162 [2018-04-13 07:55:23,912 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 34 treesize of output 33 [2018-04-13 07:55:23,913 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,926 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:23,942 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. [2018-04-13 07:55:23,942 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:214, output treesize:182 [2018-04-13 07:55:24,172 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:24,173 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:24,173 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:24,173 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:24,176 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 203 treesize of output 192 [2018-04-13 07:55:24,177 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 17 treesize of output 1 [2018-04-13 07:55:24,178 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:24,193 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:24,193 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 96 treesize of output 75 [2018-04-13 07:55:24,194 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:24,207 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:24,207 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 58 treesize of output 42 [2018-04-13 07:55:24,207 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:24,216 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:24,233 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 49 treesize of output 49 [2018-04-13 07:55:24,234 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:24,234 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 19 treesize of output 13 [2018-04-13 07:55:24,234 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:24,240 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 [2018-04-13 07:55:24,240 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:24,243 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:24,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-04-13 07:55:24,243 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:24,245 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:24,254 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. [2018-04-13 07:55:24,255 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:227, output treesize:23 [2018-04-13 07:55:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:24,326 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:24,326 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-13 07:55:24,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 07:55:24,326 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 07:55:24,326 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2018-04-13 07:55:24,327 INFO L87 Difference]: Start difference. First operand 243 states and 278 transitions. Second operand 24 states. [2018-04-13 07:55:27,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:27,643 INFO L93 Difference]: Finished difference Result 393 states and 437 transitions. [2018-04-13 07:55:27,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-13 07:55:27,643 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 55 [2018-04-13 07:55:27,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:27,644 INFO L225 Difference]: With dead ends: 393 [2018-04-13 07:55:27,644 INFO L226 Difference]: Without dead ends: 393 [2018-04-13 07:55:27,644 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=310, Invalid=1852, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 07:55:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-04-13 07:55:27,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 224. [2018-04-13 07:55:27,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-04-13 07:55:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 254 transitions. [2018-04-13 07:55:27,647 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 254 transitions. Word has length 55 [2018-04-13 07:55:27,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:27,647 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 254 transitions. [2018-04-13 07:55:27,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 07:55:27,647 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 254 transitions. [2018-04-13 07:55:27,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-13 07:55:27,647 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:27,647 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, 1, 1, 1, 1] [2018-04-13 07:55:27,648 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:27,648 INFO L82 PathProgramCache]: Analyzing trace with hash -286721599, now seen corresponding path program 1 times [2018-04-13 07:55:27,648 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:27,648 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:27,648 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:27,648 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:27,648 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:27,652 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:27,654 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:27,654 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:27,654 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:27,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:27,665 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:27,687 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:55:27,688 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 8 treesize of output 7 [2018-04-13 07:55:27,688 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,689 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,694 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-13 07:55:27,703 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:27,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:27,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:55:27,704 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,709 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,709 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-13 07:55:27,726 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 [2018-04-13 07:55:27,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:27,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,728 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,734 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:30 [2018-04-13 07:55:27,745 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 [2018-04-13 07:55:27,746 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:55:27,746 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,747 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,751 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. [2018-04-13 07:55:27,751 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:21 [2018-04-13 07:55:27,771 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 5 treesize of output 1 [2018-04-13 07:55:27,772 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,779 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 [2018-04-13 07:55:27,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:55:27,780 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,783 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:27,788 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:37, output treesize:28 [2018-04-13 07:55:27,827 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 [2018-04-13 07:55:27,828 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 [2018-04-13 07:55:27,828 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,831 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:27,832 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 [2018-04-13 07:55:27,832 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,833 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:27,838 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:38, output treesize:3 [2018-04-13 07:55:27,848 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 07:55:27,849 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:27,849 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-13 07:55:27,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-13 07:55:27,849 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-13 07:55:27,849 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-04-13 07:55:27,849 INFO L87 Difference]: Start difference. First operand 224 states and 254 transitions. Second operand 15 states. [2018-04-13 07:55:28,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:28,258 INFO L93 Difference]: Finished difference Result 302 states and 334 transitions. [2018-04-13 07:55:28,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-13 07:55:28,258 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2018-04-13 07:55:28,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:28,259 INFO L225 Difference]: With dead ends: 302 [2018-04-13 07:55:28,259 INFO L226 Difference]: Without dead ends: 300 [2018-04-13 07:55:28,260 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2018-04-13 07:55:28,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-04-13 07:55:28,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 224. [2018-04-13 07:55:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-04-13 07:55:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 253 transitions. [2018-04-13 07:55:28,261 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 253 transitions. Word has length 58 [2018-04-13 07:55:28,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:28,262 INFO L459 AbstractCegarLoop]: Abstraction has 224 states and 253 transitions. [2018-04-13 07:55:28,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-13 07:55:28,262 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 253 transitions. [2018-04-13 07:55:28,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-13 07:55:28,262 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:28,262 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:55:28,262 INFO L408 AbstractCegarLoop]: === Iteration 41 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:28,262 INFO L82 PathProgramCache]: Analyzing trace with hash -350140512, now seen corresponding path program 4 times [2018-04-13 07:55:28,262 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:28,262 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:28,263 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:28,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:28,263 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:28,269 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:28,271 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:28,271 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:28,271 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:28,272 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 07:55:28,284 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 07:55:28,284 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:28,286 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:28,335 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 [2018-04-13 07:55:28,335 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,338 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:55:28,355 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,355 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,356 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 [2018-04-13 07:55:28,356 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,363 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-04-13 07:55:28,419 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 [2018-04-13 07:55:28,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:28,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,437 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 [2018-04-13 07:55:28,439 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 [2018-04-13 07:55:28,440 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,441 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,450 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,450 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:50, output treesize:45 [2018-04-13 07:55:28,550 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,551 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,551 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,552 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 [2018-04-13 07:55:28,552 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,563 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:76 [2018-04-13 07:55:28,603 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,606 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 [2018-04-13 07:55:28,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:28,608 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,613 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,652 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,655 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,655 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 [2018-04-13 07:55:28,657 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 [2018-04-13 07:55:28,657 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,666 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,678 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,678 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:102, output treesize:84 [2018-04-13 07:55:28,742 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,746 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:28,749 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 183 treesize of output 156 [2018-04-13 07:55:28,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:28,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,762 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,779 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 159 treesize of output 141 [2018-04-13 07:55:28,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:28,792 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,804 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,820 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. [2018-04-13 07:55:28,821 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:200, output treesize:156 [2018-04-13 07:55:28,925 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 122 treesize of output 109 [2018-04-13 07:55:28,927 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 [2018-04-13 07:55:28,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,935 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:28,936 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 87 treesize of output 67 [2018-04-13 07:55:28,936 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,943 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:28,952 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. [2018-04-13 07:55:28,953 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:151, output treesize:91 [2018-04-13 07:55:29,018 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:29,018 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:29,019 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:29,019 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:29,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 82 [2018-04-13 07:55:29,024 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:29,027 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 33 treesize of output 37 [2018-04-13 07:55:29,027 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:29,039 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 7 treesize of output 1 [2018-04-13 07:55:29,039 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:29,047 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 20 treesize of output 14 [2018-04-13 07:55:29,048 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:29,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:29,059 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:29,059 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:100, output treesize:28 [2018-04-13 07:55:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:29,110 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:29,110 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-13 07:55:29,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-13 07:55:29,111 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-13 07:55:29,111 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2018-04-13 07:55:29,111 INFO L87 Difference]: Start difference. First operand 224 states and 253 transitions. Second operand 23 states. [2018-04-13 07:55:30,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:30,258 INFO L93 Difference]: Finished difference Result 298 states and 333 transitions. [2018-04-13 07:55:30,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-13 07:55:30,258 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 58 [2018-04-13 07:55:30,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:30,259 INFO L225 Difference]: With dead ends: 298 [2018-04-13 07:55:30,259 INFO L226 Difference]: Without dead ends: 298 [2018-04-13 07:55:30,260 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=291, Invalid=1601, Unknown=0, NotChecked=0, Total=1892 [2018-04-13 07:55:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2018-04-13 07:55:30,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 229. [2018-04-13 07:55:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-04-13 07:55:30,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 259 transitions. [2018-04-13 07:55:30,261 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 259 transitions. Word has length 58 [2018-04-13 07:55:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:30,261 INFO L459 AbstractCegarLoop]: Abstraction has 229 states and 259 transitions. [2018-04-13 07:55:30,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-13 07:55:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 259 transitions. [2018-04-13 07:55:30,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-13 07:55:30,262 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:30,262 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:55:30,262 INFO L408 AbstractCegarLoop]: === Iteration 42 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:30,262 INFO L82 PathProgramCache]: Analyzing trace with hash -350140511, now seen corresponding path program 3 times [2018-04-13 07:55:30,262 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:30,262 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:30,263 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:30,263 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:30,263 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:30,269 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:30,273 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:30,273 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:30,273 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:30,274 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:55:30,290 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-13 07:55:30,290 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:30,292 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:30,317 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,318 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,318 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:55:30,318 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:30,325 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,330 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-04-13 07:55:30,376 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 [2018-04-13 07:55:30,378 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 [2018-04-13 07:55:30,378 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,380 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,393 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 [2018-04-13 07:55:30,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:30,395 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,397 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,406 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,406 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:50, output treesize:45 [2018-04-13 07:55:30,466 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,467 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,467 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,468 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,468 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 [2018-04-13 07:55:30,468 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,493 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 18 treesize of output 27 [2018-04-13 07:55:30,494 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,506 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,507 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:79, output treesize:71 [2018-04-13 07:55:30,552 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,555 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,555 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 [2018-04-13 07:55:30,557 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 [2018-04-13 07:55:30,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,564 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,581 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 [2018-04-13 07:55:30,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:30,583 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,588 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,601 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:94, output treesize:91 [2018-04-13 07:55:30,686 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,689 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,691 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 180 treesize of output 159 [2018-04-13 07:55:30,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:30,693 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,718 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,723 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 116 treesize of output 149 [2018-04-13 07:55:30,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:30,725 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,733 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,749 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. [2018-04-13 07:55:30,749 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:204, output treesize:172 [2018-04-13 07:55:30,914 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,915 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,915 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,916 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:30,918 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:30,918 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 189 treesize of output 182 [2018-04-13 07:55:30,921 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:30,924 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 140 treesize of output 108 [2018-04-13 07:55:30,925 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:30,950 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:30,954 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 110 treesize of output 108 [2018-04-13 07:55:30,955 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:30,956 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:30,956 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 104 treesize of output 88 [2018-04-13 07:55:30,957 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,988 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 75 treesize of output 62 [2018-04-13 07:55:30,988 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:30,989 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 75 treesize of output 62 [2018-04-13 07:55:30,989 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:31,008 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:31,033 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 62 [2018-04-13 07:55:31,035 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 11 treesize of output 1 [2018-04-13 07:55:31,035 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:31,044 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:31,044 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 [2018-04-13 07:55:31,044 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:31,052 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:31,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-04-13 07:55:31,052 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:31,057 INFO L267 ElimStorePlain]: Start of recursive call 8: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:31,060 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 62 [2018-04-13 07:55:31,061 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:31,062 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 30 treesize of output 22 [2018-04-13 07:55:31,062 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:31,070 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 [2018-04-13 07:55:31,070 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:31,077 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:31,077 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 17 treesize of output 9 [2018-04-13 07:55:31,078 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:31,083 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:31,097 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:31,097 INFO L202 ElimStorePlain]: Needed 15 recursive calls to eliminate 5 variables, input treesize:212, output treesize:37 [2018-04-13 07:55:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:31,156 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:31,156 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-13 07:55:31,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 07:55:31,156 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 07:55:31,156 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2018-04-13 07:55:31,156 INFO L87 Difference]: Start difference. First operand 229 states and 259 transitions. Second operand 24 states. [2018-04-13 07:55:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:32,617 INFO L93 Difference]: Finished difference Result 337 states and 371 transitions. [2018-04-13 07:55:32,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:55:32,618 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 58 [2018-04-13 07:55:32,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:32,618 INFO L225 Difference]: With dead ends: 337 [2018-04-13 07:55:32,618 INFO L226 Difference]: Without dead ends: 337 [2018-04-13 07:55:32,619 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=324, Invalid=1838, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 07:55:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-04-13 07:55:32,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 229. [2018-04-13 07:55:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-04-13 07:55:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 259 transitions. [2018-04-13 07:55:32,621 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 259 transitions. Word has length 58 [2018-04-13 07:55:32,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:32,621 INFO L459 AbstractCegarLoop]: Abstraction has 229 states and 259 transitions. [2018-04-13 07:55:32,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 07:55:32,621 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 259 transitions. [2018-04-13 07:55:32,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-13 07:55:32,621 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:32,621 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, 1, 1, 1, 1] [2018-04-13 07:55:32,621 INFO L408 AbstractCegarLoop]: === Iteration 43 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:32,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1806773015, now seen corresponding path program 1 times [2018-04-13 07:55:32,622 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:32,622 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:32,622 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:32,622 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:32,622 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:32,627 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:32,628 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:32,628 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:32,628 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:32,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:32,639 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:32,640 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:32,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,643 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,643 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:55:32,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:55:32,658 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:55:32,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,659 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,664 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-13 07:55:32,674 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:32,675 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:32,675 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:55:32,676 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,681 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,681 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-13 07:55:32,702 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 [2018-04-13 07:55:32,703 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 [2018-04-13 07:55:32,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,711 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,712 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:30 [2018-04-13 07:55:32,724 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 [2018-04-13 07:55:32,725 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 [2018-04-13 07:55:32,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,726 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,731 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:32,731 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:21 [2018-04-13 07:55:32,756 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 [2018-04-13 07:55:32,757 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:55:32,757 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,760 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,766 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. [2018-04-13 07:55:32,767 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:28 [2018-04-13 07:55:32,827 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 [2018-04-13 07:55:32,829 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:32,829 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 [2018-04-13 07:55:32,829 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,833 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 [2018-04-13 07:55:32,833 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,834 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,840 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:32,840 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:38, output treesize:3 [2018-04-13 07:55:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 07:55:32,857 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:32,857 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-13 07:55:32,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-13 07:55:32,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-13 07:55:32,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2018-04-13 07:55:32,857 INFO L87 Difference]: Start difference. First operand 229 states and 259 transitions. Second operand 15 states. [2018-04-13 07:55:33,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:33,442 INFO L93 Difference]: Finished difference Result 300 states and 333 transitions. [2018-04-13 07:55:33,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-13 07:55:33,442 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2018-04-13 07:55:33,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:33,443 INFO L225 Difference]: With dead ends: 300 [2018-04-13 07:55:33,443 INFO L226 Difference]: Without dead ends: 295 [2018-04-13 07:55:33,443 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2018-04-13 07:55:33,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2018-04-13 07:55:33,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 229. [2018-04-13 07:55:33,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-04-13 07:55:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 258 transitions. [2018-04-13 07:55:33,445 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 258 transitions. Word has length 58 [2018-04-13 07:55:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:33,446 INFO L459 AbstractCegarLoop]: Abstraction has 229 states and 258 transitions. [2018-04-13 07:55:33,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-13 07:55:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 258 transitions. [2018-04-13 07:55:33,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-13 07:55:33,446 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:33,446 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-04-13 07:55:33,446 INFO L408 AbstractCegarLoop]: === Iteration 44 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:33,446 INFO L82 PathProgramCache]: Analyzing trace with hash -665999021, now seen corresponding path program 1 times [2018-04-13 07:55:33,446 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:33,446 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:33,447 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:33,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:33,447 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:33,452 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:33,455 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:33,455 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:33,455 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:33,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:33,471 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:33,473 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 6 treesize of output 5 [2018-04-13 07:55:33,473 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:33,477 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,480 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:55:33,506 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,507 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 [2018-04-13 07:55:33,507 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,515 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,516 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,516 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 [2018-04-13 07:55:33,517 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,523 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:31 [2018-04-13 07:55:33,546 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 [2018-04-13 07:55:33,547 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 [2018-04-13 07:55:33,547 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,549 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,557 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:49 [2018-04-13 07:55:33,599 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,600 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,600 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 [2018-04-13 07:55:33,600 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,612 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,612 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,613 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,613 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 26 treesize of output 49 [2018-04-13 07:55:33,614 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,623 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,623 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:64, output treesize:69 [2018-04-13 07:55:33,659 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,661 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,661 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 67 [2018-04-13 07:55:33,663 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 [2018-04-13 07:55:33,663 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,672 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,683 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:89, output treesize:92 [2018-04-13 07:55:33,744 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,747 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,748 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 125 treesize of output 118 [2018-04-13 07:55:33,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:33,750 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,760 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,771 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. [2018-04-13 07:55:33,771 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:138, output treesize:124 [2018-04-13 07:55:33,947 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:33,947 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 67 [2018-04-13 07:55:33,948 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,966 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:33,967 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,967 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:33,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 84 [2018-04-13 07:55:33,971 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 [2018-04-13 07:55:33,971 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,979 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:33,979 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 37 treesize of output 25 [2018-04-13 07:55:33,979 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:33,985 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:33,985 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 24 treesize of output 19 [2018-04-13 07:55:33,986 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:33,990 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:34,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:34,000 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:165, output treesize:28 [2018-04-13 07:55:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:34,098 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:34,099 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-13 07:55:34,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 07:55:34,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 07:55:34,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2018-04-13 07:55:34,099 INFO L87 Difference]: Start difference. First operand 229 states and 258 transitions. Second operand 24 states. [2018-04-13 07:55:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:36,770 INFO L93 Difference]: Finished difference Result 336 states and 379 transitions. [2018-04-13 07:55:36,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:55:36,771 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 58 [2018-04-13 07:55:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:36,771 INFO L225 Difference]: With dead ends: 336 [2018-04-13 07:55:36,771 INFO L226 Difference]: Without dead ends: 336 [2018-04-13 07:55:36,772 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=313, Invalid=1849, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 07:55:36,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2018-04-13 07:55:36,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 249. [2018-04-13 07:55:36,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2018-04-13 07:55:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 283 transitions. [2018-04-13 07:55:36,774 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 283 transitions. Word has length 58 [2018-04-13 07:55:36,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:36,774 INFO L459 AbstractCegarLoop]: Abstraction has 249 states and 283 transitions. [2018-04-13 07:55:36,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 07:55:36,774 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 283 transitions. [2018-04-13 07:55:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-13 07:55:36,774 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:36,774 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-04-13 07:55:36,775 INFO L408 AbstractCegarLoop]: === Iteration 45 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:36,775 INFO L82 PathProgramCache]: Analyzing trace with hash -665999020, now seen corresponding path program 1 times [2018-04-13 07:55:36,775 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:36,775 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:36,775 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:36,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:36,775 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:36,784 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:36,789 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:36,790 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:36,790 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:36,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:36,821 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:36,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:36,828 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,832 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 [2018-04-13 07:55:36,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,835 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,835 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:55:36,857 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:36,857 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 [2018-04-13 07:55:36,857 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,866 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:36,867 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:36,867 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 [2018-04-13 07:55:36,867 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,874 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:31 [2018-04-13 07:55:36,897 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 [2018-04-13 07:55:36,906 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 [2018-04-13 07:55:36,907 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,917 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:56 [2018-04-13 07:55:36,978 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:36,979 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:36,979 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 [2018-04-13 07:55:36,980 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:36,996 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:36,996 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:36,997 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:36,998 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 [2018-04-13 07:55:36,998 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:37,009 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:79, output treesize:71 [2018-04-13 07:55:37,046 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 [2018-04-13 07:55:37,047 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 16 treesize of output 15 [2018-04-13 07:55:37,047 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,049 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,063 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:37,065 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:37,066 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 [2018-04-13 07:55:37,067 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 [2018-04-13 07:55:37,067 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,074 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:37,085 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:101, output treesize:98 [2018-04-13 07:55:37,152 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 53 treesize of output 60 [2018-04-13 07:55:37,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:37,153 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,157 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,172 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:37,175 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:37,176 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 153 treesize of output 138 [2018-04-13 07:55:37,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:37,178 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,188 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,200 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. [2018-04-13 07:55:37,200 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:187, output treesize:155 [2018-04-13 07:55:37,402 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:37,402 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:37,403 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:37,406 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 180 treesize of output 151 [2018-04-13 07:55:37,407 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 [2018-04-13 07:55:37,408 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,423 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:37,423 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 50 treesize of output 34 [2018-04-13 07:55:37,424 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,437 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:37,437 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 63 treesize of output 46 [2018-04-13 07:55:37,438 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:37,448 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:37,466 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 28 treesize of output 26 [2018-04-13 07:55:37,468 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:37,468 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 [2018-04-13 07:55:37,468 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,473 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 [2018-04-13 07:55:37,473 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,474 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:37,486 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:37,487 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 8 variables, input treesize:211, output treesize:41 [2018-04-13 07:55:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:37,585 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:37,585 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 07:55:37,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 07:55:37,585 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 07:55:37,585 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2018-04-13 07:55:37,586 INFO L87 Difference]: Start difference. First operand 249 states and 283 transitions. Second operand 25 states. [2018-04-13 07:55:40,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:40,905 INFO L93 Difference]: Finished difference Result 365 states and 408 transitions. [2018-04-13 07:55:40,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-13 07:55:40,906 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 58 [2018-04-13 07:55:40,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:40,906 INFO L225 Difference]: With dead ends: 365 [2018-04-13 07:55:40,906 INFO L226 Difference]: Without dead ends: 365 [2018-04-13 07:55:40,907 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=347, Invalid=2203, Unknown=0, NotChecked=0, Total=2550 [2018-04-13 07:55:40,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2018-04-13 07:55:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 244. [2018-04-13 07:55:40,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-04-13 07:55:40,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 277 transitions. [2018-04-13 07:55:40,908 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 277 transitions. Word has length 58 [2018-04-13 07:55:40,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:40,909 INFO L459 AbstractCegarLoop]: Abstraction has 244 states and 277 transitions. [2018-04-13 07:55:40,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 07:55:40,909 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 277 transitions. [2018-04-13 07:55:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-13 07:55:40,909 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:40,909 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] [2018-04-13 07:55:40,909 INFO L408 AbstractCegarLoop]: === Iteration 46 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:40,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1913196099, now seen corresponding path program 2 times [2018-04-13 07:55:40,909 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:40,909 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:40,910 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:40,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:40,910 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:40,915 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:40,917 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:40,917 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:40,917 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:40,917 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:55:40,929 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:55:40,929 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:40,931 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:40,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:40,932 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:40,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:40,935 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:40,936 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:40,936 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:55:40,953 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:40,954 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:40,954 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 [2018-04-13 07:55:40,954 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:40,961 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 [2018-04-13 07:55:40,961 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:40,967 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:40,968 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-13 07:55:40,989 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 [2018-04-13 07:55:40,990 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 10 treesize of output 9 [2018-04-13 07:55:40,990 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:40,992 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,005 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 [2018-04-13 07:55:41,006 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 [2018-04-13 07:55:41,006 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,007 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,016 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:64, output treesize:65 [2018-04-13 07:55:41,071 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,072 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,072 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,073 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 [2018-04-13 07:55:41,073 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,090 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 [2018-04-13 07:55:41,091 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,105 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:41,105 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:100, output treesize:107 [2018-04-13 07:55:41,144 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:55:41,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:41,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,153 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,174 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,175 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,176 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 [2018-04-13 07:55:41,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:41,177 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,185 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,201 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:41,201 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:135, output treesize:127 [2018-04-13 07:55:41,229 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,229 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 169 treesize of output 147 [2018-04-13 07:55:41,231 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 137 treesize of output 88 [2018-04-13 07:55:41,231 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-13 07:55:41,240 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,246 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:41,258 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:211, output treesize:123 [2018-04-13 07:55:41,304 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,306 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,308 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 118 treesize of output 105 [2018-04-13 07:55:41,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:41,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,319 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:41,331 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:124 [2018-04-13 07:55:41,501 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,502 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,502 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,502 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:41,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 79 [2018-04-13 07:55:41,503 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:41,521 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,522 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,522 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,523 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:41,524 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:41,525 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 93 treesize of output 98 [2018-04-13 07:55:41,528 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:41,531 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 45 treesize of output 47 [2018-04-13 07:55:41,532 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:41,544 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 35 treesize of output 23 [2018-04-13 07:55:41,544 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:41,549 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:41,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:41,558 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:165, output treesize:28 [2018-04-13 07:55:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:41,647 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:41,647 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-13 07:55:41,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 07:55:41,648 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 07:55:41,648 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2018-04-13 07:55:41,648 INFO L87 Difference]: Start difference. First operand 244 states and 277 transitions. Second operand 24 states. [2018-04-13 07:55:44,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:44,872 INFO L93 Difference]: Finished difference Result 343 states and 386 transitions. [2018-04-13 07:55:44,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:55:44,872 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 58 [2018-04-13 07:55:44,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:44,873 INFO L225 Difference]: With dead ends: 343 [2018-04-13 07:55:44,873 INFO L226 Difference]: Without dead ends: 343 [2018-04-13 07:55:44,873 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=328, Invalid=1834, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 07:55:44,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2018-04-13 07:55:44,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 249. [2018-04-13 07:55:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2018-04-13 07:55:44,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 283 transitions. [2018-04-13 07:55:44,902 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 283 transitions. Word has length 58 [2018-04-13 07:55:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:44,902 INFO L459 AbstractCegarLoop]: Abstraction has 249 states and 283 transitions. [2018-04-13 07:55:44,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 07:55:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 283 transitions. [2018-04-13 07:55:44,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-04-13 07:55:44,903 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:44,903 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] [2018-04-13 07:55:44,903 INFO L408 AbstractCegarLoop]: === Iteration 47 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:44,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1913196098, now seen corresponding path program 1 times [2018-04-13 07:55:44,904 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:44,904 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:44,904 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:44,904 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:44,904 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:44,912 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:44,915 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:44,915 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:44,915 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:44,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:44,939 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:44,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:44,972 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:44,980 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:44,980 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:44,980 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 [2018-04-13 07:55:44,981 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:44,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:44,986 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-04-13 07:55:45,006 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 [2018-04-13 07:55:45,007 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 10 treesize of output 9 [2018-04-13 07:55:45,008 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,009 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,023 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 [2018-04-13 07:55:45,024 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 [2018-04-13 07:55:45,024 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,025 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,036 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,036 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:58, output treesize:56 [2018-04-13 07:55:45,054 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 [2018-04-13 07:55:45,055 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 [2018-04-13 07:55:45,055 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,057 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,066 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,066 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:68, output treesize:53 [2018-04-13 07:55:45,105 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 11 treesize of output 14 [2018-04-13 07:55:45,106 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 14 treesize of output 13 [2018-04-13 07:55:45,106 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,108 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,122 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:72, output treesize:69 [2018-04-13 07:55:45,142 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:45,142 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 [2018-04-13 07:55:45,143 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:45,160 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:45,160 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:45,161 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 [2018-04-13 07:55:45,161 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,175 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,176 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:86, output treesize:93 [2018-04-13 07:55:45,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 34 [2018-04-13 07:55:45,227 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,241 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:45,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 68 [2018-04-13 07:55:45,245 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 [2018-04-13 07:55:45,245 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,253 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,264 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,265 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:111, output treesize:90 [2018-04-13 07:55:45,331 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:45,333 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 44 [2018-04-13 07:55:45,335 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 20 treesize of output 19 [2018-04-13 07:55:45,335 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,352 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:45,352 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:125, output treesize:133 [2018-04-13 07:55:45,382 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 146 treesize of output 113 [2018-04-13 07:55:45,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:45,385 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,395 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,407 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. [2018-04-13 07:55:45,407 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:155, output treesize:139 [2018-04-13 07:55:45,477 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:45,479 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 139 treesize of output 101 [2018-04-13 07:55:45,484 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 45 treesize of output 41 [2018-04-13 07:55:45,485 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:45,502 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 [2018-04-13 07:55:45,503 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,519 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:45,519 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 60 treesize of output 44 [2018-04-13 07:55:45,519 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,522 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:45,525 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 58 [2018-04-13 07:55:45,526 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:45,544 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:45,562 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. [2018-04-13 07:55:45,562 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:154, output treesize:71 [2018-04-13 07:55:45,630 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 [2018-04-13 07:55:45,634 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 11 treesize of output 12 [2018-04-13 07:55:45,634 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:45,639 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 [2018-04-13 07:55:45,639 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:45,641 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:55:45,648 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. [2018-04-13 07:55:45,649 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:45, output treesize:49 [2018-04-13 07:55:45,726 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:45,726 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:45,726 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 07:55:45,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 07:55:45,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 07:55:45,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2018-04-13 07:55:45,727 INFO L87 Difference]: Start difference. First operand 249 states and 283 transitions. Second operand 26 states. [2018-04-13 07:55:47,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:47,509 INFO L93 Difference]: Finished difference Result 376 states and 417 transitions. [2018-04-13 07:55:47,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:55:47,509 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 58 [2018-04-13 07:55:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:47,510 INFO L225 Difference]: With dead ends: 376 [2018-04-13 07:55:47,510 INFO L226 Difference]: Without dead ends: 375 [2018-04-13 07:55:47,511 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=360, Invalid=2292, Unknown=0, NotChecked=0, Total=2652 [2018-04-13 07:55:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2018-04-13 07:55:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 244. [2018-04-13 07:55:47,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-04-13 07:55:47,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 277 transitions. [2018-04-13 07:55:47,513 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 277 transitions. Word has length 58 [2018-04-13 07:55:47,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:47,513 INFO L459 AbstractCegarLoop]: Abstraction has 244 states and 277 transitions. [2018-04-13 07:55:47,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 07:55:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 277 transitions. [2018-04-13 07:55:47,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-13 07:55:47,513 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:47,514 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:55:47,514 INFO L408 AbstractCegarLoop]: === Iteration 48 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:47,514 INFO L82 PathProgramCache]: Analyzing trace with hash -724096735, now seen corresponding path program 2 times [2018-04-13 07:55:47,514 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:47,514 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:47,515 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:47,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:47,515 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:47,523 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:47,525 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:47,525 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:47,525 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:47,526 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:55:47,546 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:55:47,546 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:47,549 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:47,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:47,563 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,566 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:55:47,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:55:47,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:55:47,586 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,588 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,595 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:25 [2018-04-13 07:55:47,608 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:47,609 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:47,609 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 [2018-04-13 07:55:47,610 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,619 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,619 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:34 [2018-04-13 07:55:47,653 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 [2018-04-13 07:55:47,655 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 [2018-04-13 07:55:47,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,656 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:46 [2018-04-13 07:55:47,713 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:47,715 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 [2018-04-13 07:55:47,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:47,717 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,720 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,731 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:47,731 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:63, output treesize:65 [2018-04-13 07:55:47,749 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:47,750 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:47,751 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:47,751 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 [2018-04-13 07:55:47,751 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:47,762 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:63 [2018-04-13 07:55:47,801 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:47,803 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 [2018-04-13 07:55:47,805 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 [2018-04-13 07:55:47,805 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,811 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,823 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:47,823 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:75 [2018-04-13 07:55:47,842 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 [2018-04-13 07:55:47,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:55:47,844 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:47,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:55:47,850 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,854 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:47,862 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. [2018-04-13 07:55:47,863 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:93, output treesize:36 [2018-04-13 07:55:47,915 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 [2018-04-13 07:55:47,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:55:47,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,921 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:47,931 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. [2018-04-13 07:55:47,931 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:43 [2018-04-13 07:55:48,007 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 [2018-04-13 07:55:48,009 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 [2018-04-13 07:55:48,009 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:48,015 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 5 treesize of output 1 [2018-04-13 07:55:48,015 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:48,018 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:48,019 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 [2018-04-13 07:55:48,019 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:48,021 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:48,027 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:48,027 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-04-13 07:55:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:48,054 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:48,054 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:55:48,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 07:55:48,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 07:55:48,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2018-04-13 07:55:48,054 INFO L87 Difference]: Start difference. First operand 244 states and 277 transitions. Second operand 21 states. [2018-04-13 07:55:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:49,175 INFO L93 Difference]: Finished difference Result 337 states and 375 transitions. [2018-04-13 07:55:49,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-13 07:55:49,175 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 60 [2018-04-13 07:55:49,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:49,176 INFO L225 Difference]: With dead ends: 337 [2018-04-13 07:55:49,176 INFO L226 Difference]: Without dead ends: 335 [2018-04-13 07:55:49,176 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2018-04-13 07:55:49,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-04-13 07:55:49,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 244. [2018-04-13 07:55:49,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-04-13 07:55:49,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 276 transitions. [2018-04-13 07:55:49,178 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 276 transitions. Word has length 60 [2018-04-13 07:55:49,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:49,179 INFO L459 AbstractCegarLoop]: Abstraction has 244 states and 276 transitions. [2018-04-13 07:55:49,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 07:55:49,179 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 276 transitions. [2018-04-13 07:55:49,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-13 07:55:49,179 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:49,179 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, 1, 1, 1] [2018-04-13 07:55:49,179 INFO L408 AbstractCegarLoop]: === Iteration 49 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:49,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1079532791, now seen corresponding path program 1 times [2018-04-13 07:55:49,179 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:49,179 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:49,180 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:49,180 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:49,180 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:49,184 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:49,185 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:49,185 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:49,185 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:49,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:49,195 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:49,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:49,223 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,226 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:49,226 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,229 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:55:49,251 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:49,251 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 [2018-04-13 07:55:49,252 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,260 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:49,261 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:49,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:55:49,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,267 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-13 07:55:49,297 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 [2018-04-13 07:55:49,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:49,298 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,308 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:55 [2018-04-13 07:55:49,351 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 [2018-04-13 07:55:49,351 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,360 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:49,360 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:49,360 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:55:49,361 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:49,367 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:40 [2018-04-13 07:55:49,396 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:49,399 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 [2018-04-13 07:55:49,400 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:49,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,405 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,413 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:49,413 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:53, output treesize:46 [2018-04-13 07:55:49,476 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 3 case distinctions, treesize of input 74 treesize of output 72 [2018-04-13 07:55:49,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 80 [2018-04-13 07:55:49,478 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,495 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:49,499 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 46 treesize of output 60 [2018-04-13 07:55:49,499 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:49,516 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:55:49,529 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 2 xjuncts. [2018-04-13 07:55:49,529 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:80, output treesize:107 [2018-04-13 07:55:49,596 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 1 case distinctions, treesize of input 73 treesize of output 67 [2018-04-13 07:55:49,601 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 45 treesize of output 46 [2018-04-13 07:55:49,602 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:49,627 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 34 treesize of output 31 [2018-04-13 07:55:49,628 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:49,631 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 38 treesize of output 35 [2018-04-13 07:55:49,631 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:49,658 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 57 treesize of output 50 [2018-04-13 07:55:49,659 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,688 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 50 treesize of output 43 [2018-04-13 07:55:49,689 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:49,717 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 [2018-04-13 07:55:49,717 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-04-13 07:55:49,718 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,731 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:55:49,746 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 51 treesize of output 44 [2018-04-13 07:55:49,747 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 [2018-04-13 07:55:49,747 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:49,755 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 21 [2018-04-13 07:55:49,756 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:49,760 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:55:49,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-13 07:55:49,775 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 9 variables, input treesize:125, output treesize:13 [2018-04-13 07:55:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:49,819 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:49,819 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:55:49,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 07:55:49,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 07:55:49,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2018-04-13 07:55:49,820 INFO L87 Difference]: Start difference. First operand 244 states and 276 transitions. Second operand 21 states. [2018-04-13 07:55:51,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:51,177 INFO L93 Difference]: Finished difference Result 372 states and 414 transitions. [2018-04-13 07:55:51,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-13 07:55:51,177 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 60 [2018-04-13 07:55:51,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:51,178 INFO L225 Difference]: With dead ends: 372 [2018-04-13 07:55:51,178 INFO L226 Difference]: Without dead ends: 371 [2018-04-13 07:55:51,178 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=272, Invalid=1534, Unknown=0, NotChecked=0, Total=1806 [2018-04-13 07:55:51,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-04-13 07:55:51,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 281. [2018-04-13 07:55:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-04-13 07:55:51,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 326 transitions. [2018-04-13 07:55:51,180 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 326 transitions. Word has length 60 [2018-04-13 07:55:51,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:51,181 INFO L459 AbstractCegarLoop]: Abstraction has 281 states and 326 transitions. [2018-04-13 07:55:51,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 07:55:51,181 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 326 transitions. [2018-04-13 07:55:51,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-13 07:55:51,181 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:51,181 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2018-04-13 07:55:51,181 INFO L408 AbstractCegarLoop]: === Iteration 50 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:51,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1981847483, now seen corresponding path program 3 times [2018-04-13 07:55:51,181 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:51,181 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:51,182 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:51,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:55:51,182 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:51,188 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:51,189 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:51,189 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:51,190 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:51,190 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:55:51,215 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-13 07:55:51,215 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:51,218 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:51,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:51,221 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,224 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,224 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:55:51,248 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,249 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:55:51,249 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:51,255 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,259 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2018-04-13 07:55:51,286 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 [2018-04-13 07:55:51,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:51,287 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,288 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,299 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 [2018-04-13 07:55:51,300 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 [2018-04-13 07:55:51,300 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,301 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,310 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:56, output treesize:48 [2018-04-13 07:55:51,354 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 [2018-04-13 07:55:51,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:51,356 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,357 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:51,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:82, output treesize:84 [2018-04-13 07:55:51,388 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,389 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,389 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,390 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,390 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 [2018-04-13 07:55:51,391 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,409 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 18 treesize of output 27 [2018-04-13 07:55:51,410 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,427 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:51,427 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:98, output treesize:96 [2018-04-13 07:55:51,471 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,473 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 [2018-04-13 07:55:51,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:51,475 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,479 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,498 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,500 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,501 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 82 treesize of output 94 [2018-04-13 07:55:51,503 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 [2018-04-13 07:55:51,503 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,544 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,559 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:51,559 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:119, output treesize:116 [2018-04-13 07:55:51,583 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,584 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 49 treesize of output 39 [2018-04-13 07:55:51,585 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 [2018-04-13 07:55:51,585 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,591 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 [2018-04-13 07:55:51,591 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,593 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,605 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. [2018-04-13 07:55:51,605 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:155, output treesize:113 [2018-04-13 07:55:51,652 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,654 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,655 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 [2018-04-13 07:55:51,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 46 [2018-04-13 07:55:51,657 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,677 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. [2018-04-13 07:55:51,677 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:127, output treesize:110 [2018-04-13 07:55:51,710 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,711 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,734 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,737 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 112 treesize of output 119 [2018-04-13 07:55:51,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:51,739 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,750 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,763 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. [2018-04-13 07:55:51,763 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:127, output treesize:111 [2018-04-13 07:55:51,822 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,823 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,824 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,825 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 103 treesize of output 97 [2018-04-13 07:55:51,828 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:51,832 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 50 treesize of output 46 [2018-04-13 07:55:51,832 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:55:51,845 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 29 treesize of output 17 [2018-04-13 07:55:51,845 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:51,850 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:51,860 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 7 treesize of output 5 [2018-04-13 07:55:51,861 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 [2018-04-13 07:55:51,861 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,861 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,869 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:51,869 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:122, output treesize:31 [2018-04-13 07:55:51,920 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,921 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:51,921 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 [2018-04-13 07:55:51,930 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 [2018-04-13 07:55:51,931 INFO L267 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts. [2018-04-13 07:55:51,941 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 [2018-04-13 07:55:51,941 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:51,944 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:55:51,953 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 2 xjuncts. [2018-04-13 07:55:51,953 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:41, output treesize:49 [2018-04-13 07:55:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 07:55:52,040 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:52,040 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 07:55:52,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 07:55:52,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 07:55:52,040 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2018-04-13 07:55:52,040 INFO L87 Difference]: Start difference. First operand 281 states and 326 transitions. Second operand 24 states. [2018-04-13 07:55:53,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:53,903 INFO L93 Difference]: Finished difference Result 339 states and 376 transitions. [2018-04-13 07:55:53,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-13 07:55:53,903 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 60 [2018-04-13 07:55:53,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:53,904 INFO L225 Difference]: With dead ends: 339 [2018-04-13 07:55:53,904 INFO L226 Difference]: Without dead ends: 338 [2018-04-13 07:55:53,904 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=284, Invalid=1878, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 07:55:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-04-13 07:55:53,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 268. [2018-04-13 07:55:53,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-04-13 07:55:53,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 306 transitions. [2018-04-13 07:55:53,906 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 306 transitions. Word has length 60 [2018-04-13 07:55:53,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:53,906 INFO L459 AbstractCegarLoop]: Abstraction has 268 states and 306 transitions. [2018-04-13 07:55:53,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 07:55:53,906 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 306 transitions. [2018-04-13 07:55:53,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-13 07:55:53,907 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:53,907 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:55:53,907 INFO L408 AbstractCegarLoop]: === Iteration 51 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:53,907 INFO L82 PathProgramCache]: Analyzing trace with hash 819016417, now seen corresponding path program 2 times [2018-04-13 07:55:53,907 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:53,907 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:53,907 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:53,908 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:53,908 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:53,912 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:53,913 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:53,913 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:53,914 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:53,914 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:55:53,926 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:55:53,926 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:53,929 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:53,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:53,932 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:53,937 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 [2018-04-13 07:55:53,938 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:53,942 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:53,942 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:55:53,965 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:55:53,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:55:53,967 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:53,969 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:53,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:53,991 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:27 [2018-04-13 07:55:54,002 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:54,002 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 [2018-04-13 07:55:54,002 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,014 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:54,015 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:54,015 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 [2018-04-13 07:55:54,015 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,024 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:41 [2018-04-13 07:55:54,063 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 [2018-04-13 07:55:54,063 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:55:54,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:54,075 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,076 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,085 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:61, output treesize:46 [2018-04-13 07:55:54,127 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:54,129 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 [2018-04-13 07:55:54,130 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 14 treesize of output 13 [2018-04-13 07:55:54,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,134 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,143 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:54,143 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:63, output treesize:65 [2018-04-13 07:55:54,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:54,160 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:54,161 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:54,161 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 [2018-04-13 07:55:54,161 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,172 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:54,172 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:63 [2018-04-13 07:55:54,206 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:54,208 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 [2018-04-13 07:55:54,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:54,210 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,225 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:54,236 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:75 [2018-04-13 07:55:54,258 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 [2018-04-13 07:55:54,259 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 [2018-04-13 07:55:54,259 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,264 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 [2018-04-13 07:55:54,265 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:54,269 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:54,277 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. [2018-04-13 07:55:54,277 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:93, output treesize:36 [2018-04-13 07:55:54,357 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 [2018-04-13 07:55:54,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:55:54,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,368 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,378 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. [2018-04-13 07:55:54,378 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:43 [2018-04-13 07:55:54,457 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 [2018-04-13 07:55:54,459 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:54,459 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 [2018-04-13 07:55:54,459 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,465 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 [2018-04-13 07:55:54,466 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,474 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 5 treesize of output 1 [2018-04-13 07:55:54,474 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,475 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,483 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:54,483 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-04-13 07:55:54,510 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:54,510 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:54,510 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:55:54,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 07:55:54,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 07:55:54,510 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-04-13 07:55:54,511 INFO L87 Difference]: Start difference. First operand 268 states and 306 transitions. Second operand 21 states. [2018-04-13 07:55:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:55,896 INFO L93 Difference]: Finished difference Result 376 states and 420 transitions. [2018-04-13 07:55:55,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-13 07:55:55,896 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 60 [2018-04-13 07:55:55,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:55,896 INFO L225 Difference]: With dead ends: 376 [2018-04-13 07:55:55,897 INFO L226 Difference]: Without dead ends: 371 [2018-04-13 07:55:55,897 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=254, Invalid=1386, Unknown=0, NotChecked=0, Total=1640 [2018-04-13 07:55:55,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-04-13 07:55:55,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 268. [2018-04-13 07:55:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-04-13 07:55:55,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 305 transitions. [2018-04-13 07:55:55,899 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 305 transitions. Word has length 60 [2018-04-13 07:55:55,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:55,899 INFO L459 AbstractCegarLoop]: Abstraction has 268 states and 305 transitions. [2018-04-13 07:55:55,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 07:55:55,899 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 305 transitions. [2018-04-13 07:55:55,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-13 07:55:55,899 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:55,899 INFO L355 BasicCegarLoop]: trace histogram [4, 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] [2018-04-13 07:55:55,899 INFO L408 AbstractCegarLoop]: === Iteration 52 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:55,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1721331109, now seen corresponding path program 5 times [2018-04-13 07:55:55,899 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:55,900 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:55,900 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:55,900 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:55,900 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:55,906 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:55,909 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:55,909 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:55,909 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:55,910 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-13 07:55:55,934 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-04-13 07:55:55,934 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:55,937 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:55,964 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:55,964 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:55,977 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:55,978 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:55,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:55:55,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:55,989 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:55,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-04-13 07:55:56,041 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 [2018-04-13 07:55:56,043 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 [2018-04-13 07:55:56,043 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,044 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,056 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 [2018-04-13 07:55:56,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:56,057 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,059 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,070 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,070 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2018-04-13 07:55:56,155 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,155 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 [2018-04-13 07:55:56,155 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,186 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,187 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,187 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,188 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 [2018-04-13 07:55:56,188 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,199 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:76, output treesize:68 [2018-04-13 07:55:56,241 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,243 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,243 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 [2018-04-13 07:55:56,245 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 [2018-04-13 07:55:56,245 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,253 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,268 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,271 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 [2018-04-13 07:55:56,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:56,272 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,276 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,288 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,289 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:98, output treesize:95 [2018-04-13 07:55:56,364 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 [2018-04-13 07:55:56,365 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 20 treesize of output 19 [2018-04-13 07:55:56,365 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,367 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,383 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:56,383 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:139, output treesize:147 [2018-04-13 07:55:56,412 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,416 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,418 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 207 treesize of output 174 [2018-04-13 07:55:56,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:56,420 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,437 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,459 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,464 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 62 treesize of output 95 [2018-04-13 07:55:56,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:56,466 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,473 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,493 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. [2018-04-13 07:55:56,493 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:225, output treesize:193 [2018-04-13 07:55:56,557 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,559 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 47 treesize of output 65 [2018-04-13 07:55:56,561 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 [2018-04-13 07:55:56,561 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,568 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 [2018-04-13 07:55:56,569 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-13 07:55:56,573 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,574 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,589 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. [2018-04-13 07:55:56,589 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:180, output treesize:137 [2018-04-13 07:55:56,642 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,644 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:56,645 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 132 treesize of output 100 [2018-04-13 07:55:56,646 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 [2018-04-13 07:55:56,646 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,659 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:56,659 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 55 treesize of output 35 [2018-04-13 07:55:56,659 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:56,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2018-04-13 07:55:56,669 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:56,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:56,687 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:56,687 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:138, output treesize:32 [2018-04-13 07:55:56,738 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 15 treesize of output 11 [2018-04-13 07:55:56,742 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 [2018-04-13 07:55:56,742 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 07:55:56,745 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:55:56,753 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 2 xjuncts. [2018-04-13 07:55:56,754 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:68 [2018-04-13 07:55:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:56,851 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:56,851 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 07:55:56,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 07:55:56,851 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 07:55:56,851 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=575, Unknown=1, NotChecked=0, Total=650 [2018-04-13 07:55:56,852 INFO L87 Difference]: Start difference. First operand 268 states and 305 transitions. Second operand 26 states. [2018-04-13 07:55:59,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:55:59,066 INFO L93 Difference]: Finished difference Result 375 states and 415 transitions. [2018-04-13 07:55:59,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:55:59,066 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 60 [2018-04-13 07:55:59,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:55:59,067 INFO L225 Difference]: With dead ends: 375 [2018-04-13 07:55:59,067 INFO L226 Difference]: Without dead ends: 374 [2018-04-13 07:55:59,068 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=341, Invalid=2309, Unknown=2, NotChecked=0, Total=2652 [2018-04-13 07:55:59,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2018-04-13 07:55:59,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 271. [2018-04-13 07:55:59,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-04-13 07:55:59,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 308 transitions. [2018-04-13 07:55:59,070 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 308 transitions. Word has length 60 [2018-04-13 07:55:59,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:55:59,070 INFO L459 AbstractCegarLoop]: Abstraction has 271 states and 308 transitions. [2018-04-13 07:55:59,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 07:55:59,070 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 308 transitions. [2018-04-13 07:55:59,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-13 07:55:59,070 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:55:59,070 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2018-04-13 07:55:59,070 INFO L408 AbstractCegarLoop]: === Iteration 53 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:55:59,071 INFO L82 PathProgramCache]: Analyzing trace with hash 966584979, now seen corresponding path program 3 times [2018-04-13 07:55:59,071 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:55:59,071 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:55:59,071 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:59,071 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:55:59,071 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:55:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:55:59,076 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:55:59,078 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:55:59,079 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:55:59,079 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:55:59,079 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:55:59,094 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-13 07:55:59,094 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:55:59,096 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:55:59,098 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:55:59,098 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,100 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,100 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:55:59,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:55:59,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:55:59,115 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,123 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:25 [2018-04-13 07:55:59,133 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,133 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:55:59,134 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,140 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,140 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-13 07:55:59,163 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 [2018-04-13 07:55:59,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:55:59,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,165 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,173 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:35 [2018-04-13 07:55:59,214 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,216 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 [2018-04-13 07:55:59,218 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 14 treesize of output 13 [2018-04-13 07:55:59,218 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,221 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,231 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:59,231 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:57, output treesize:59 [2018-04-13 07:55:59,249 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,249 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,250 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,250 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,251 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 [2018-04-13 07:55:59,251 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:59,267 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:78 [2018-04-13 07:55:59,312 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,314 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 [2018-04-13 07:55:59,316 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 [2018-04-13 07:55:59,316 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,322 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:59,337 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:90 [2018-04-13 07:55:59,414 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,415 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,419 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 [2018-04-13 07:55:59,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:55:59,421 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,427 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,442 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. [2018-04-13 07:55:59,442 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:142, output treesize:145 [2018-04-13 07:55:59,470 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,471 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,471 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,472 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,472 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 [2018-04-13 07:55:59,472 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:59,490 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:150, output treesize:142 [2018-04-13 07:55:59,541 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,542 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:55:59,546 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 [2018-04-13 07:55:59,548 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 [2018-04-13 07:55:59,548 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,559 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:59,574 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:155, output treesize:148 [2018-04-13 07:55:59,602 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 [2018-04-13 07:55:59,604 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 [2018-04-13 07:55:59,604 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,612 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 [2018-04-13 07:55:59,613 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:59,621 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 [2018-04-13 07:55:59,621 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:59,627 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:55:59,638 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. [2018-04-13 07:55:59,639 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:202, output treesize:55 [2018-04-13 07:55:59,711 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 [2018-04-13 07:55:59,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:55:59,713 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,720 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,731 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. [2018-04-13 07:55:59,732 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:66, output treesize:62 [2018-04-13 07:55:59,803 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 [2018-04-13 07:55:59,805 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 [2018-04-13 07:55:59,805 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,821 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 [2018-04-13 07:55:59,821 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,825 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 [2018-04-13 07:55:59,825 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,828 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:55:59,828 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 [2018-04-13 07:55:59,828 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,830 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:55:59,837 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 10 variables, input treesize:72, output treesize:3 [2018-04-13 07:55:59,869 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:55:59,869 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:55:59,870 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 07:55:59,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 07:55:59,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 07:55:59,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2018-04-13 07:55:59,870 INFO L87 Difference]: Start difference. First operand 271 states and 308 transitions. Second operand 26 states. [2018-04-13 07:56:07,803 WARN L151 SmtUtils]: Spent 1823ms on a formula simplification. DAG size of input: 113 DAG size of output 111 [2018-04-13 07:56:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:12,341 INFO L93 Difference]: Finished difference Result 373 states and 416 transitions. [2018-04-13 07:56:12,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-13 07:56:12,342 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 61 [2018-04-13 07:56:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:12,343 INFO L225 Difference]: With dead ends: 373 [2018-04-13 07:56:12,343 INFO L226 Difference]: Without dead ends: 373 [2018-04-13 07:56:12,343 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=351, Invalid=2401, Unknown=4, NotChecked=0, Total=2756 [2018-04-13 07:56:12,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2018-04-13 07:56:12,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 285. [2018-04-13 07:56:12,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-04-13 07:56:12,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 324 transitions. [2018-04-13 07:56:12,345 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 324 transitions. Word has length 61 [2018-04-13 07:56:12,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:12,345 INFO L459 AbstractCegarLoop]: Abstraction has 285 states and 324 transitions. [2018-04-13 07:56:12,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 07:56:12,345 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 324 transitions. [2018-04-13 07:56:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-13 07:56:12,345 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:12,346 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] [2018-04-13 07:56:12,346 INFO L408 AbstractCegarLoop]: === Iteration 54 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:12,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1044525437, now seen corresponding path program 4 times [2018-04-13 07:56:12,346 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:12,346 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:12,346 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:12,346 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:12,347 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:12,355 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:12,360 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:12,360 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:12,360 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:12,361 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 07:56:12,381 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 07:56:12,381 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:12,384 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:12,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:12,392 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:12,395 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,398 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:56:12,417 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,417 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,417 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 [2018-04-13 07:56:12,418 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:56:12,424 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,430 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,430 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:31 [2018-04-13 07:56:12,450 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 [2018-04-13 07:56:12,451 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 [2018-04-13 07:56:12,451 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,460 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,460 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:56 [2018-04-13 07:56:12,508 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,508 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,509 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,509 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 [2018-04-13 07:56:12,509 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,522 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 [2018-04-13 07:56:12,522 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,533 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:12,533 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:79, output treesize:86 [2018-04-13 07:56:12,566 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,568 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 65 treesize of output 66 [2018-04-13 07:56:12,570 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:12,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,589 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:12,589 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:104, output treesize:104 [2018-04-13 07:56:12,653 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,654 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,654 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,655 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,656 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 [2018-04-13 07:56:12,656 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,677 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 47 treesize of output 124 [2018-04-13 07:56:12,678 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,697 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. [2018-04-13 07:56:12,697 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:157, output treesize:180 [2018-04-13 07:56:12,755 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,756 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:12,760 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 159 treesize of output 143 [2018-04-13 07:56:12,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:12,762 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:12,796 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:193, output treesize:198 [2018-04-13 07:56:12,900 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 284 treesize of output 182 [2018-04-13 07:56:12,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:12,902 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:12,941 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. [2018-04-13 07:56:12,941 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:304, output treesize:282 [2018-04-13 07:56:13,048 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 71 treesize of output 139 [2018-04-13 07:56:13,049 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:13,072 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 220 treesize of output 123 [2018-04-13 07:56:13,074 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 [2018-04-13 07:56:13,074 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:13,092 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 [2018-04-13 07:56:13,093 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:13,107 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:13,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2018-04-13 07:56:13,108 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:13,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:56:13,153 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:13,160 INFO L267 ElimStorePlain]: Start of recursive call 3: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:13,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:13,173 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:301, output treesize:45 [2018-04-13 07:56:13,400 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:13,400 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:13,400 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-13 07:56:13,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 07:56:13,400 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 07:56:13,400 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2018-04-13 07:56:13,400 INFO L87 Difference]: Start difference. First operand 285 states and 324 transitions. Second operand 26 states. [2018-04-13 07:56:16,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:16,211 INFO L93 Difference]: Finished difference Result 382 states and 430 transitions. [2018-04-13 07:56:16,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 07:56:16,211 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 61 [2018-04-13 07:56:16,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:16,212 INFO L225 Difference]: With dead ends: 382 [2018-04-13 07:56:16,212 INFO L226 Difference]: Without dead ends: 382 [2018-04-13 07:56:16,212 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=359, Invalid=2191, Unknown=0, NotChecked=0, Total=2550 [2018-04-13 07:56:16,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-04-13 07:56:16,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 306. [2018-04-13 07:56:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2018-04-13 07:56:16,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 349 transitions. [2018-04-13 07:56:16,214 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 349 transitions. Word has length 61 [2018-04-13 07:56:16,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:16,214 INFO L459 AbstractCegarLoop]: Abstraction has 306 states and 349 transitions. [2018-04-13 07:56:16,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 07:56:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 349 transitions. [2018-04-13 07:56:16,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-13 07:56:16,215 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:16,215 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] [2018-04-13 07:56:16,215 INFO L408 AbstractCegarLoop]: === Iteration 55 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:16,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1044525438, now seen corresponding path program 3 times [2018-04-13 07:56:16,215 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:16,215 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:16,215 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:16,215 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:16,216 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:16,221 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:16,225 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:16,225 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:16,225 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:16,225 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:56:16,244 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-13 07:56:16,244 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:16,247 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:16,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:16,249 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,253 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 6 treesize of output 5 [2018-04-13 07:56:16,253 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,256 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,256 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:56:16,284 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,285 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 [2018-04-13 07:56:16,285 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,295 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,296 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,296 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 [2018-04-13 07:56:16,296 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,304 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,304 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:41 [2018-04-13 07:56:16,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:56:16,332 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,343 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 [2018-04-13 07:56:16,344 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 [2018-04-13 07:56:16,344 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,345 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,356 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 [2018-04-13 07:56:16,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:16,357 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,358 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,367 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. [2018-04-13 07:56:16,367 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:71, output treesize:58 [2018-04-13 07:56:16,422 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,423 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,423 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,424 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 61 [2018-04-13 07:56:16,424 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,436 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:16,436 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:86 [2018-04-13 07:56:16,477 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,480 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 [2018-04-13 07:56:16,482 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 [2018-04-13 07:56:16,482 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,489 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,508 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,510 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 [2018-04-13 07:56:16,512 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 16 treesize of output 15 [2018-04-13 07:56:16,512 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,515 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,530 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. [2018-04-13 07:56:16,530 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:124, output treesize:105 [2018-04-13 07:56:16,622 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,623 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 20 treesize of output 29 [2018-04-13 07:56:16,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,652 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,653 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,653 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,654 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,654 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 [2018-04-13 07:56:16,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,670 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. [2018-04-13 07:56:16,671 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:155, output treesize:146 [2018-04-13 07:56:16,725 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,725 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,730 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 126 treesize of output 122 [2018-04-13 07:56:16,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:16,732 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,747 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,769 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,781 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 [2018-04-13 07:56:16,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:16,783 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,787 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:16,805 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:169, output treesize:188 [2018-04-13 07:56:16,958 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:16,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 334 treesize of output 237 [2018-04-13 07:56:16,961 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 72 [2018-04-13 07:56:16,961 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:16,978 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:17,000 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:17,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 194 [2018-04-13 07:56:17,007 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 46 treesize of output 45 [2018-04-13 07:56:17,007 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:17,015 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:17,035 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. [2018-04-13 07:56:17,035 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:355, output treesize:289 [2018-04-13 07:56:17,164 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:17,165 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:17,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 174 [2018-04-13 07:56:17,171 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 65 treesize of output 45 [2018-04-13 07:56:17,172 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:17,189 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 54 [2018-04-13 07:56:17,189 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:17,204 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 [2018-04-13 07:56:17,205 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:17,218 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:17,219 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 31 [2018-04-13 07:56:17,219 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:17,230 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:17,252 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 43 treesize of output 45 [2018-04-13 07:56:17,253 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 [2018-04-13 07:56:17,254 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:17,260 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 [2018-04-13 07:56:17,260 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:17,264 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:17,264 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 [2018-04-13 07:56:17,264 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:17,266 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:17,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:17,280 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:310, output treesize:22 [2018-04-13 07:56:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:17,362 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:17,363 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 07:56:17,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:56:17,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:56:17,363 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2018-04-13 07:56:17,363 INFO L87 Difference]: Start difference. First operand 306 states and 349 transitions. Second operand 27 states. [2018-04-13 07:56:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:19,880 INFO L93 Difference]: Finished difference Result 410 states and 460 transitions. [2018-04-13 07:56:19,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-13 07:56:19,880 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 61 [2018-04-13 07:56:19,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:19,881 INFO L225 Difference]: With dead ends: 410 [2018-04-13 07:56:19,881 INFO L226 Difference]: Without dead ends: 410 [2018-04-13 07:56:19,881 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=330, Invalid=2426, Unknown=0, NotChecked=0, Total=2756 [2018-04-13 07:56:19,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-04-13 07:56:19,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 304. [2018-04-13 07:56:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2018-04-13 07:56:19,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 346 transitions. [2018-04-13 07:56:19,884 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 346 transitions. Word has length 61 [2018-04-13 07:56:19,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:19,884 INFO L459 AbstractCegarLoop]: Abstraction has 304 states and 346 transitions. [2018-04-13 07:56:19,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:56:19,884 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 346 transitions. [2018-04-13 07:56:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-13 07:56:19,884 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:19,884 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] [2018-04-13 07:56:19,884 INFO L408 AbstractCegarLoop]: === Iteration 56 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:19,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1558452435, now seen corresponding path program 5 times [2018-04-13 07:56:19,884 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:19,885 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:19,885 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:19,885 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:19,885 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:19,891 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:19,893 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:19,893 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:19,893 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:19,894 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-13 07:56:19,919 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2018-04-13 07:56:19,920 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:19,923 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:19,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:19,925 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:19,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:19,929 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:19,954 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:19,954 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:19,954 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:56:19,955 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:19,959 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:19,959 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-04-13 07:56:19,975 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 [2018-04-13 07:56:19,976 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 [2018-04-13 07:56:19,976 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:19,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:19,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:19,983 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:28 [2018-04-13 07:56:20,014 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:20,014 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:20,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:56:20,015 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:20,022 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:43 [2018-04-13 07:56:20,051 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:20,053 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 33 treesize of output 34 [2018-04-13 07:56:20,054 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 [2018-04-13 07:56:20,055 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,058 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,067 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:20,067 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:61, output treesize:60 [2018-04-13 07:56:20,128 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:20,129 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:20,129 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:20,130 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:20,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 45 treesize of output 107 [2018-04-13 07:56:20,130 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:20,145 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:95, output treesize:119 [2018-04-13 07:56:20,194 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:20,204 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 3 case distinctions, treesize of input 109 treesize of output 104 [2018-04-13 07:56:20,207 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 120 treesize of output 119 [2018-04-13 07:56:20,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,248 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 2 case distinctions, treesize of input 54 treesize of output 55 [2018-04-13 07:56:20,248 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:56:20,268 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:56:20,292 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 2 xjuncts. [2018-04-13 07:56:20,292 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:132, output treesize:214 [2018-04-13 07:56:20,437 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 128 treesize of output 101 [2018-04-13 07:56:20,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:20,439 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,495 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 225 treesize of output 147 [2018-04-13 07:56:20,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:20,497 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,513 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:20,542 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 9 variables, input treesize:354, output treesize:316 [2018-04-13 07:56:20,660 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 7 new quantified variables, introduced 1 case distinctions, treesize of input 212 treesize of output 133 [2018-04-13 07:56:20,663 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 116 treesize of output 100 [2018-04-13 07:56:20,663 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:20,697 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 100 treesize of output 84 [2018-04-13 07:56:20,697 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:20,734 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 104 treesize of output 97 [2018-04-13 07:56:20,734 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,769 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 84 treesize of output 77 [2018-04-13 07:56:20,769 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,799 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 97 treesize of output 77 [2018-04-13 07:56:20,799 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:20,831 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:20,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 61 [2018-04-13 07:56:20,832 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,861 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:20,861 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 77 treesize of output 65 [2018-04-13 07:56:20,862 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,891 INFO L267 ElimStorePlain]: Start of recursive call 2: 7 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:20,939 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 121 treesize of output 89 [2018-04-13 07:56:20,940 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2018-04-13 07:56:20,941 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:20,953 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:20,953 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 33 treesize of output 21 [2018-04-13 07:56:20,953 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,963 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 [2018-04-13 07:56:20,963 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:20,971 INFO L267 ElimStorePlain]: Start of recursive call 10: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:21,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 2 dim-2 vars, End of recursive call: 8 dim-0 vars, and 3 xjuncts. [2018-04-13 07:56:21,008 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 13 variables, input treesize:334, output treesize:115 [2018-04-13 07:56:21,108 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:21,108 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:21,108 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 07:56:21,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 07:56:21,108 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 07:56:21,108 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2018-04-13 07:56:21,109 INFO L87 Difference]: Start difference. First operand 304 states and 346 transitions. Second operand 25 states. [2018-04-13 07:56:24,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:24,485 INFO L93 Difference]: Finished difference Result 422 states and 475 transitions. [2018-04-13 07:56:24,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:56:24,486 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 61 [2018-04-13 07:56:24,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:24,487 INFO L225 Difference]: With dead ends: 422 [2018-04-13 07:56:24,487 INFO L226 Difference]: Without dead ends: 422 [2018-04-13 07:56:24,487 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=342, Invalid=2207, Unknown=1, NotChecked=0, Total=2550 [2018-04-13 07:56:24,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2018-04-13 07:56:24,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 325. [2018-04-13 07:56:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-04-13 07:56:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 371 transitions. [2018-04-13 07:56:24,489 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 371 transitions. Word has length 61 [2018-04-13 07:56:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:24,489 INFO L459 AbstractCegarLoop]: Abstraction has 325 states and 371 transitions. [2018-04-13 07:56:24,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 07:56:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 371 transitions. [2018-04-13 07:56:24,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-13 07:56:24,490 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:24,490 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] [2018-04-13 07:56:24,490 INFO L408 AbstractCegarLoop]: === Iteration 57 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:24,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1558452436, now seen corresponding path program 4 times [2018-04-13 07:56:24,490 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:24,490 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:24,490 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:24,491 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:24,491 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:24,496 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:24,498 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:24,498 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:24,498 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:24,499 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 07:56:24,511 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 07:56:24,511 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:24,513 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:24,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:24,515 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,518 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:24,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:24,548 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,557 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,558 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,558 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-04-13 07:56:24,558 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,574 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,574 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-04-13 07:56:24,599 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 [2018-04-13 07:56:24,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:24,601 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,603 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,634 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 [2018-04-13 07:56:24,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:24,636 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,638 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,650 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,651 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2018-04-13 07:56:24,724 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,724 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 [2018-04-13 07:56:24,724 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,738 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,739 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,740 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,740 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 58 [2018-04-13 07:56:24,740 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,753 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:76, output treesize:83 [2018-04-13 07:56:24,798 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,801 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 65 treesize of output 66 [2018-04-13 07:56:24,803 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 [2018-04-13 07:56:24,803 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,811 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,829 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,831 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 [2018-04-13 07:56:24,833 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:24,833 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,837 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,853 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,853 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:114, output treesize:101 [2018-04-13 07:56:24,968 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,968 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,969 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 35 treesize of output 82 [2018-04-13 07:56:24,969 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:24,989 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,990 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,990 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,991 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:24,991 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 [2018-04-13 07:56:24,991 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:25,006 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:148, output treesize:139 [2018-04-13 07:56:25,054 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:25,055 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:25,060 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 [2018-04-13 07:56:25,062 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 [2018-04-13 07:56:25,063 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,076 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,097 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:25,099 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 36 [2018-04-13 07:56:25,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:25,103 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,107 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,125 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. [2018-04-13 07:56:25,125 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:165, output treesize:151 [2018-04-13 07:56:25,221 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 282 treesize of output 174 [2018-04-13 07:56:25,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:25,224 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,240 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,263 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 [2018-04-13 07:56:25,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:25,265 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,270 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,289 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. [2018-04-13 07:56:25,289 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:294, output treesize:250 [2018-04-13 07:56:25,400 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 247 treesize of output 136 [2018-04-13 07:56:25,402 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:25,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2018-04-13 07:56:25,402 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:56:25,416 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:25,430 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 [2018-04-13 07:56:25,430 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,441 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 47 treesize of output 27 [2018-04-13 07:56:25,441 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:25,450 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:25,466 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 [2018-04-13 07:56:25,467 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:25,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:56:25,467 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,471 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 [2018-04-13 07:56:25,471 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,472 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:25,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:25,482 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:274, output treesize:31 [2018-04-13 07:56:25,549 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:25,549 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:25,549 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 07:56:25,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 07:56:25,549 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 07:56:25,549 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2018-04-13 07:56:25,549 INFO L87 Difference]: Start difference. First operand 325 states and 371 transitions. Second operand 25 states. [2018-04-13 07:56:27,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:27,912 INFO L93 Difference]: Finished difference Result 452 states and 507 transitions. [2018-04-13 07:56:27,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:56:27,912 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 61 [2018-04-13 07:56:27,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:27,913 INFO L225 Difference]: With dead ends: 452 [2018-04-13 07:56:27,913 INFO L226 Difference]: Without dead ends: 452 [2018-04-13 07:56:27,914 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=301, Invalid=2149, Unknown=0, NotChecked=0, Total=2450 [2018-04-13 07:56:27,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2018-04-13 07:56:27,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 304. [2018-04-13 07:56:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2018-04-13 07:56:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 346 transitions. [2018-04-13 07:56:27,917 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 346 transitions. Word has length 61 [2018-04-13 07:56:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:27,917 INFO L459 AbstractCegarLoop]: Abstraction has 304 states and 346 transitions. [2018-04-13 07:56:27,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 07:56:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 346 transitions. [2018-04-13 07:56:27,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-13 07:56:27,917 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:27,917 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2018-04-13 07:56:27,918 INFO L408 AbstractCegarLoop]: === Iteration 58 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:27,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1470720829, now seen corresponding path program 6 times [2018-04-13 07:56:27,918 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:27,918 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:27,918 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:27,918 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:27,918 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:27,923 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:27,926 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:27,926 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:27,926 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:27,927 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-13 07:56:27,954 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-04-13 07:56:27,954 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:27,956 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:27,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:27,958 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:27,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:27,960 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:27,978 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:27,979 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:27,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:56:27,980 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:27,994 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 [2018-04-13 07:56:27,994 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:27,999 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:27,999 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-13 07:56:28,014 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 [2018-04-13 07:56:28,015 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 [2018-04-13 07:56:28,015 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,022 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:38 [2018-04-13 07:56:28,062 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,063 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,063 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 [2018-04-13 07:56:28,063 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,075 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,076 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,076 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,077 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,077 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 45 [2018-04-13 07:56:28,077 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,087 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:65 [2018-04-13 07:56:28,126 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,128 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 47 treesize of output 48 [2018-04-13 07:56:28,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:28,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,135 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,148 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 [2018-04-13 07:56:28,149 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 14 treesize of output 13 [2018-04-13 07:56:28,149 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,151 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,162 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,162 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:93, output treesize:95 [2018-04-13 07:56:28,224 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,225 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,226 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,226 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,227 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 41 treesize of output 120 [2018-04-13 07:56:28,227 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,250 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 36 treesize of output 101 [2018-04-13 07:56:28,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,268 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:28,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:158, output treesize:177 [2018-04-13 07:56:28,333 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,334 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,337 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,338 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 163 treesize of output 166 [2018-04-13 07:56:28,340 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 [2018-04-13 07:56:28,341 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,382 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,384 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 40 treesize of output 55 [2018-04-13 07:56:28,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:28,386 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,390 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,411 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:28,411 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:200, output treesize:209 [2018-04-13 07:56:28,451 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 267 treesize of output 207 [2018-04-13 07:56:28,452 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 189 treesize of output 134 [2018-04-13 07:56:28,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-13 07:56:28,464 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,471 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:28,489 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:351, output treesize:211 [2018-04-13 07:56:28,578 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,582 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,585 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 220 treesize of output 164 [2018-04-13 07:56:28,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:28,587 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,604 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:28,620 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:230, output treesize:212 [2018-04-13 07:56:28,727 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,727 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 56 treesize of output 112 [2018-04-13 07:56:28,727 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,744 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,746 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:28,748 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 168 treesize of output 105 [2018-04-13 07:56:28,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:56:28,750 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:28,760 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:28,761 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-04-13 07:56:28,761 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:28,770 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 26 treesize of output 18 [2018-04-13 07:56:28,770 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:28,777 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:28,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:28,788 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:231, output treesize:45 [2018-04-13 07:56:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:29,002 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:29,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 07:56:29,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:56:29,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:56:29,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2018-04-13 07:56:29,003 INFO L87 Difference]: Start difference. First operand 304 states and 346 transitions. Second operand 27 states. [2018-04-13 07:56:31,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:31,677 INFO L93 Difference]: Finished difference Result 431 states and 484 transitions. [2018-04-13 07:56:31,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:56:31,677 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 61 [2018-04-13 07:56:31,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:31,679 INFO L225 Difference]: With dead ends: 431 [2018-04-13 07:56:31,679 INFO L226 Difference]: Without dead ends: 431 [2018-04-13 07:56:31,679 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=355, Invalid=2401, Unknown=0, NotChecked=0, Total=2756 [2018-04-13 07:56:31,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2018-04-13 07:56:31,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 329. [2018-04-13 07:56:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2018-04-13 07:56:31,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 377 transitions. [2018-04-13 07:56:31,683 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 377 transitions. Word has length 61 [2018-04-13 07:56:31,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:31,683 INFO L459 AbstractCegarLoop]: Abstraction has 329 states and 377 transitions. [2018-04-13 07:56:31,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:56:31,683 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 377 transitions. [2018-04-13 07:56:31,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-13 07:56:31,684 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:31,684 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2018-04-13 07:56:31,684 INFO L408 AbstractCegarLoop]: === Iteration 59 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:31,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1470720830, now seen corresponding path program 4 times [2018-04-13 07:56:31,684 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:31,684 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:31,685 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:31,685 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:31,685 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:31,694 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:31,697 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:31,697 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:31,697 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:31,697 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 07:56:31,722 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 07:56:31,723 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:31,726 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:31,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:31,736 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,738 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,738 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:31,754 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:31,755 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,764 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:31,764 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:31,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:56:31,765 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,773 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-04-13 07:56:31,797 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 [2018-04-13 07:56:31,799 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 [2018-04-13 07:56:31,799 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,800 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,812 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 [2018-04-13 07:56:31,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:31,813 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,815 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,824 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,824 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2018-04-13 07:56:31,875 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:31,875 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 [2018-04-13 07:56:31,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,886 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:31,887 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:31,887 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:31,887 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 [2018-04-13 07:56:31,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:76, output treesize:83 [2018-04-13 07:56:31,937 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:31,940 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 65 treesize of output 66 [2018-04-13 07:56:31,941 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 [2018-04-13 07:56:31,941 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,948 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,964 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:31,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:56:31,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:31,968 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,972 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:31,985 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:114, output treesize:101 [2018-04-13 07:56:32,050 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:32,051 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:32,051 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:32,052 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:32,052 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 [2018-04-13 07:56:32,052 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,066 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 82 [2018-04-13 07:56:32,066 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:32,078 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:148, output treesize:139 [2018-04-13 07:56:32,119 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:32,121 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 [2018-04-13 07:56:32,123 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 22 treesize of output 21 [2018-04-13 07:56:32,123 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,126 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,143 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:32,144 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:32,148 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 152 treesize of output 136 [2018-04-13 07:56:32,150 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 [2018-04-13 07:56:32,150 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,161 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,175 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. [2018-04-13 07:56:32,176 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:165, output treesize:151 [2018-04-13 07:56:32,262 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:56:32,264 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 28 treesize of output 27 [2018-04-13 07:56:32,264 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,268 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,294 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 260 treesize of output 164 [2018-04-13 07:56:32,296 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 28 treesize of output 27 [2018-04-13 07:56:32,296 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,308 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,323 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. [2018-04-13 07:56:32,323 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:294, output treesize:250 [2018-04-13 07:56:32,438 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 247 treesize of output 136 [2018-04-13 07:56:32,440 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 [2018-04-13 07:56:32,440 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,462 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 [2018-04-13 07:56:32,462 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:32,475 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:32,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2018-04-13 07:56:32,475 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,485 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 [2018-04-13 07:56:32,486 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:32,495 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:32,511 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 [2018-04-13 07:56:32,512 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 [2018-04-13 07:56:32,512 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,516 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:32,516 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 [2018-04-13 07:56:32,516 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,518 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:32,528 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:32,528 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:274, output treesize:31 [2018-04-13 07:56:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:32,597 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:32,597 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 07:56:32,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 07:56:32,597 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 07:56:32,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2018-04-13 07:56:32,598 INFO L87 Difference]: Start difference. First operand 329 states and 377 transitions. Second operand 25 states. [2018-04-13 07:56:34,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:34,904 INFO L93 Difference]: Finished difference Result 463 states and 520 transitions. [2018-04-13 07:56:34,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:56:34,904 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 61 [2018-04-13 07:56:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:34,905 INFO L225 Difference]: With dead ends: 463 [2018-04-13 07:56:34,905 INFO L226 Difference]: Without dead ends: 463 [2018-04-13 07:56:34,906 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=301, Invalid=2149, Unknown=0, NotChecked=0, Total=2450 [2018-04-13 07:56:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2018-04-13 07:56:34,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 315. [2018-04-13 07:56:34,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-04-13 07:56:34,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 359 transitions. [2018-04-13 07:56:34,908 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 359 transitions. Word has length 61 [2018-04-13 07:56:34,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:34,908 INFO L459 AbstractCegarLoop]: Abstraction has 315 states and 359 transitions. [2018-04-13 07:56:34,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 07:56:34,908 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 359 transitions. [2018-04-13 07:56:34,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-13 07:56:34,908 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:34,908 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] [2018-04-13 07:56:34,909 INFO L408 AbstractCegarLoop]: === Iteration 60 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:34,909 INFO L82 PathProgramCache]: Analyzing trace with hash 625390998, now seen corresponding path program 1 times [2018-04-13 07:56:34,909 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:34,909 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:34,909 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:34,909 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:34,909 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:34,913 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:34,915 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:34,915 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:34,915 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:34,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:56:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:34,923 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:34,980 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 [2018-04-13 07:56:34,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:34,982 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:34,983 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:34,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:34,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:44 [2018-04-13 07:56:35,035 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:35,038 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 [2018-04-13 07:56:35,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:35,040 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,045 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,051 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. [2018-04-13 07:56:35,051 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:56 [2018-04-13 07:56:35,097 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:35,098 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 [2018-04-13 07:56:35,099 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 [2018-04-13 07:56:35,099 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,108 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 [2018-04-13 07:56:35,108 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:35,115 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:35,126 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. [2018-04-13 07:56:35,126 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:65, output treesize:56 [2018-04-13 07:56:35,200 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 [2018-04-13 07:56:35,202 WARN L1033 $PredicateComparison]: unable to prove that (exists ((v_subst_44 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_44 1))) (and (= 0 (select .cse0 c_main_~p~0.base)) (= |c_#valid| (store (store .cse0 c_main_~p~0.base 1) v_subst_44 0)) (= 0 (select |c_old(#valid)| v_subst_44))))) is different from true [2018-04-13 07:56:35,204 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~p~0.base Int) (v_subst_44 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_44 1))) (and (= 0 (select .cse0 main_~p~0.base)) (= (store (store (store .cse0 main_~p~0.base 1) v_subst_44 0) main_~p~0.base 0) |c_#valid|) (= 0 (select |c_old(#valid)| v_subst_44))))) is different from true [2018-04-13 07:56:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 3 not checked. [2018-04-13 07:56:35,218 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:35,218 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-13 07:56:35,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 07:56:35,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 07:56:35,218 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=240, Unknown=3, NotChecked=96, Total=380 [2018-04-13 07:56:35,219 INFO L87 Difference]: Start difference. First operand 315 states and 359 transitions. Second operand 20 states. [2018-04-13 07:56:35,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:35,869 INFO L93 Difference]: Finished difference Result 338 states and 382 transitions. [2018-04-13 07:56:35,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-13 07:56:35,869 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 63 [2018-04-13 07:56:35,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:35,870 INFO L225 Difference]: With dead ends: 338 [2018-04-13 07:56:35,870 INFO L226 Difference]: Without dead ends: 333 [2018-04-13 07:56:35,870 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=654, Unknown=3, NotChecked=162, Total=930 [2018-04-13 07:56:35,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-04-13 07:56:35,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 330. [2018-04-13 07:56:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-04-13 07:56:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 374 transitions. [2018-04-13 07:56:35,872 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 374 transitions. Word has length 63 [2018-04-13 07:56:35,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:35,872 INFO L459 AbstractCegarLoop]: Abstraction has 330 states and 374 transitions. [2018-04-13 07:56:35,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 07:56:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 374 transitions. [2018-04-13 07:56:35,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-13 07:56:35,872 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:35,872 INFO L355 BasicCegarLoop]: trace histogram [4, 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, 1, 1] [2018-04-13 07:56:35,872 INFO L408 AbstractCegarLoop]: === Iteration 61 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:35,873 INFO L82 PathProgramCache]: Analyzing trace with hash 539887239, now seen corresponding path program 5 times [2018-04-13 07:56:35,873 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:35,873 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:35,873 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:35,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:56:35,873 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:35,878 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:35,880 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:35,881 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:35,881 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:35,881 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-13 07:56:35,904 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-04-13 07:56:35,904 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:35,908 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:35,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:35,910 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,912 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:35,929 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:35,929 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 [2018-04-13 07:56:35,930 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,939 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:35,940 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:35,941 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:35,941 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 [2018-04-13 07:56:35,942 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-04-13 07:56:35,974 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 [2018-04-13 07:56:35,975 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 [2018-04-13 07:56:35,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,988 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 [2018-04-13 07:56:35,990 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 10 treesize of output 9 [2018-04-13 07:56:35,990 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:35,991 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,001 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:72, output treesize:68 [2018-04-13 07:56:36,070 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,070 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,071 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 [2018-04-13 07:56:36,071 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,088 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,088 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,089 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,089 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 [2018-04-13 07:56:36,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,101 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:36,102 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:97, output treesize:89 [2018-04-13 07:56:36,140 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,142 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,142 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 [2018-04-13 07:56:36,143 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 [2018-04-13 07:56:36,143 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,150 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,167 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,169 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 [2018-04-13 07:56:36,170 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 [2018-04-13 07:56:36,170 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,174 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,188 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. [2018-04-13 07:56:36,188 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:115, output treesize:97 [2018-04-13 07:56:36,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:56:36,262 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:36,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,263 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,278 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. [2018-04-13 07:56:36,278 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:135, output treesize:143 [2018-04-13 07:56:36,311 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 [2018-04-13 07:56:36,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:36,313 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,318 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,342 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,344 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,347 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 163 treesize of output 136 [2018-04-13 07:56:36,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:36,349 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,360 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,380 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. [2018-04-13 07:56:36,380 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:221, output treesize:189 [2018-04-13 07:56:36,473 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 [2018-04-13 07:56:36,473 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,497 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 47 treesize of output 43 [2018-04-13 07:56:36,498 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:36,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-04-13 07:56:36,499 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,504 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 [2018-04-13 07:56:36,504 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,506 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:36,523 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:205, output treesize:160 [2018-04-13 07:56:36,584 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,584 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,585 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,585 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:36,587 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:36,588 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 137 treesize of output 124 [2018-04-13 07:56:36,589 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 [2018-04-13 07:56:36,590 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,601 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:36,602 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 28 treesize of output 23 [2018-04-13 07:56:36,602 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:36,611 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:36,611 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 53 treesize of output 33 [2018-04-13 07:56:36,612 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:36,618 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:36,631 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 1 xjuncts. [2018-04-13 07:56:36,631 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:161, output treesize:50 [2018-04-13 07:56:36,696 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 15 treesize of output 11 [2018-04-13 07:56:36,700 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 11 treesize of output 12 [2018-04-13 07:56:36,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 07:56:36,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:56:36,714 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. [2018-04-13 07:56:36,714 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:60, output treesize:94 [2018-04-13 07:56:36,822 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:36,822 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:36,822 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 07:56:36,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 07:56:36,823 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 07:56:36,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=575, Unknown=1, NotChecked=0, Total=650 [2018-04-13 07:56:36,823 INFO L87 Difference]: Start difference. First operand 330 states and 374 transitions. Second operand 26 states. [2018-04-13 07:56:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:39,449 INFO L93 Difference]: Finished difference Result 426 states and 473 transitions. [2018-04-13 07:56:39,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:56:39,465 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 63 [2018-04-13 07:56:39,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:39,466 INFO L225 Difference]: With dead ends: 426 [2018-04-13 07:56:39,466 INFO L226 Difference]: Without dead ends: 425 [2018-04-13 07:56:39,466 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=341, Invalid=2309, Unknown=2, NotChecked=0, Total=2652 [2018-04-13 07:56:39,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2018-04-13 07:56:39,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 330. [2018-04-13 07:56:39,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-04-13 07:56:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 374 transitions. [2018-04-13 07:56:39,468 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 374 transitions. Word has length 63 [2018-04-13 07:56:39,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:39,468 INFO L459 AbstractCegarLoop]: Abstraction has 330 states and 374 transitions. [2018-04-13 07:56:39,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 07:56:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 374 transitions. [2018-04-13 07:56:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-13 07:56:39,469 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:39,469 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] [2018-04-13 07:56:39,469 INFO L408 AbstractCegarLoop]: === Iteration 62 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:39,469 INFO L82 PathProgramCache]: Analyzing trace with hash -445661091, now seen corresponding path program 1 times [2018-04-13 07:56:39,469 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:39,469 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:39,470 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:39,470 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:39,470 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:39,474 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:39,475 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:39,475 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:39,475 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:39,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:56:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:39,484 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:39,533 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 [2018-04-13 07:56:39,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:39,534 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:39,535 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:39,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:39,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:44 [2018-04-13 07:56:39,589 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:39,592 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 [2018-04-13 07:56:39,594 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 16 treesize of output 15 [2018-04-13 07:56:39,594 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:39,607 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:39,613 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. [2018-04-13 07:56:39,613 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:56 [2018-04-13 07:56:39,657 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:39,658 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 [2018-04-13 07:56:39,659 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 [2018-04-13 07:56:39,659 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:39,667 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 [2018-04-13 07:56:39,668 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:39,675 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:39,685 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. [2018-04-13 07:56:39,685 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:65, output treesize:56 [2018-04-13 07:56:39,766 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 [2018-04-13 07:56:39,768 WARN L1033 $PredicateComparison]: unable to prove that (exists ((v_subst_46 Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_46 1))) (and (= 0 (select .cse0 c_main_~p~0.base)) (= (store (store .cse0 c_main_~p~0.base 1) v_subst_46 0) |c_#valid|) (= 0 (select |c_old(#valid)| v_subst_46))))) is different from true [2018-04-13 07:56:39,770 WARN L1033 $PredicateComparison]: unable to prove that (exists ((v_subst_46 Int) (main_~p~0.base Int)) (let ((.cse0 (store |c_old(#valid)| v_subst_46 1))) (and (= 0 (select .cse0 main_~p~0.base)) (= 0 (select |c_old(#valid)| v_subst_46)) (= |c_#valid| (store (store (store .cse0 main_~p~0.base 1) v_subst_46 0) main_~p~0.base 0))))) is different from true [2018-04-13 07:56:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 3 not checked. [2018-04-13 07:56:39,783 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:39,783 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-13 07:56:39,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 07:56:39,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 07:56:39,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=240, Unknown=3, NotChecked=96, Total=380 [2018-04-13 07:56:39,784 INFO L87 Difference]: Start difference. First operand 330 states and 374 transitions. Second operand 20 states. [2018-04-13 07:56:40,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:40,530 INFO L93 Difference]: Finished difference Result 338 states and 382 transitions. [2018-04-13 07:56:40,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-13 07:56:40,530 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 63 [2018-04-13 07:56:40,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:40,531 INFO L225 Difference]: With dead ends: 338 [2018-04-13 07:56:40,531 INFO L226 Difference]: Without dead ends: 333 [2018-04-13 07:56:40,531 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=654, Unknown=3, NotChecked=162, Total=930 [2018-04-13 07:56:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-04-13 07:56:40,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 315. [2018-04-13 07:56:40,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-04-13 07:56:40,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 359 transitions. [2018-04-13 07:56:40,533 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 359 transitions. Word has length 63 [2018-04-13 07:56:40,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:40,533 INFO L459 AbstractCegarLoop]: Abstraction has 315 states and 359 transitions. [2018-04-13 07:56:40,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 07:56:40,533 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 359 transitions. [2018-04-13 07:56:40,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-13 07:56:40,534 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:40,534 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] [2018-04-13 07:56:40,534 INFO L408 AbstractCegarLoop]: === Iteration 63 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:40,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1604729402, now seen corresponding path program 1 times [2018-04-13 07:56:40,534 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:40,534 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:40,534 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:40,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:56:40,535 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:40,539 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:40,540 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:40,540 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:40,540 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:40,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:56:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:40,554 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:40,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:40,603 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:40,606 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,608 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:56:40,641 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:40,641 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 [2018-04-13 07:56:40,642 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,651 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:40,651 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:40,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:56:40,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,659 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,659 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:31 [2018-04-13 07:56:40,682 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 [2018-04-13 07:56:40,684 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 [2018-04-13 07:56:40,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,685 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,692 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,692 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:56 [2018-04-13 07:56:40,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:40,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:40,738 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:40,738 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 [2018-04-13 07:56:40,738 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2018-04-13 07:56:40,746 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,750 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:40,750 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:67, output treesize:40 [2018-04-13 07:56:40,771 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:40,773 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 [2018-04-13 07:56:40,774 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:40,774 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,779 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:40,786 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:58, output treesize:57 [2018-04-13 07:56:40,832 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 [2018-04-13 07:56:40,833 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:40,834 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,839 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,846 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. [2018-04-13 07:56:40,846 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:103, output treesize:87 [2018-04-13 07:56:40,890 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 [2018-04-13 07:56:40,891 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 7 treesize of output 1 [2018-04-13 07:56:40,892 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:56:40,897 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,904 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 [2018-04-13 07:56:40,904 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:40,909 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:40,917 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. [2018-04-13 07:56:40,917 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:96, output treesize:30 [2018-04-13 07:56:40,983 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:40,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-13 07:56:40,983 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:40,986 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:40,986 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:11 [2018-04-13 07:56:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:41,034 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:41,034 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-13 07:56:41,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-13 07:56:41,034 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-13 07:56:41,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2018-04-13 07:56:41,035 INFO L87 Difference]: Start difference. First operand 315 states and 359 transitions. Second operand 23 states. [2018-04-13 07:56:42,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:42,405 INFO L93 Difference]: Finished difference Result 376 states and 419 transitions. [2018-04-13 07:56:42,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:56:42,405 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 63 [2018-04-13 07:56:42,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:42,406 INFO L225 Difference]: With dead ends: 376 [2018-04-13 07:56:42,406 INFO L226 Difference]: Without dead ends: 376 [2018-04-13 07:56:42,406 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=288, Invalid=1782, Unknown=0, NotChecked=0, Total=2070 [2018-04-13 07:56:42,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-04-13 07:56:42,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 326. [2018-04-13 07:56:42,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2018-04-13 07:56:42,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 371 transitions. [2018-04-13 07:56:42,408 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 371 transitions. Word has length 63 [2018-04-13 07:56:42,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:42,408 INFO L459 AbstractCegarLoop]: Abstraction has 326 states and 371 transitions. [2018-04-13 07:56:42,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-13 07:56:42,408 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 371 transitions. [2018-04-13 07:56:42,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-13 07:56:42,409 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:42,409 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] [2018-04-13 07:56:42,409 INFO L408 AbstractCegarLoop]: === Iteration 64 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:42,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1604729401, now seen corresponding path program 1 times [2018-04-13 07:56:42,409 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:42,409 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:42,409 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:42,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:56:42,410 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:42,413 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:42,415 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:42,415 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:42,415 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:42,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:56:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:42,426 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:42,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:42,427 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,432 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,432 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:42,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:56:42,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:56:42,446 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,447 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,452 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,452 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:25 [2018-04-13 07:56:42,462 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:42,462 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:42,463 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 [2018-04-13 07:56:42,463 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,470 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:34 [2018-04-13 07:56:42,495 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 [2018-04-13 07:56:42,496 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 [2018-04-13 07:56:42,496 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,497 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,506 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,506 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:46 [2018-04-13 07:56:42,548 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:42,550 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 [2018-04-13 07:56:42,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:42,551 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,554 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,564 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:42,564 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:68, output treesize:65 [2018-04-13 07:56:42,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:42,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:42,580 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:42,580 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 [2018-04-13 07:56:42,581 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,589 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:42,589 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:63 [2018-04-13 07:56:42,617 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:42,620 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 [2018-04-13 07:56:42,621 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 [2018-04-13 07:56:42,621 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,627 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,636 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:42,637 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:75 [2018-04-13 07:56:42,654 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 [2018-04-13 07:56:42,655 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 [2018-04-13 07:56:42,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,659 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 [2018-04-13 07:56:42,659 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:42,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:42,670 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. [2018-04-13 07:56:42,670 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:93, output treesize:36 [2018-04-13 07:56:42,713 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 [2018-04-13 07:56:42,714 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:56:42,714 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,719 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,726 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. [2018-04-13 07:56:42,726 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:43 [2018-04-13 07:56:42,798 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 [2018-04-13 07:56:42,799 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 [2018-04-13 07:56:42,799 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,804 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 [2018-04-13 07:56:42,804 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,807 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:42,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:56:42,807 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,809 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:42,815 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-04-13 07:56:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-13 07:56:42,840 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:42,840 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:56:42,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 07:56:42,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 07:56:42,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2018-04-13 07:56:42,841 INFO L87 Difference]: Start difference. First operand 326 states and 371 transitions. Second operand 21 states. [2018-04-13 07:56:44,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:44,139 INFO L93 Difference]: Finished difference Result 382 states and 424 transitions. [2018-04-13 07:56:44,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-04-13 07:56:44,139 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 63 [2018-04-13 07:56:44,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:44,140 INFO L225 Difference]: With dead ends: 382 [2018-04-13 07:56:44,140 INFO L226 Difference]: Without dead ends: 377 [2018-04-13 07:56:44,140 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2018-04-13 07:56:44,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2018-04-13 07:56:44,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 323. [2018-04-13 07:56:44,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-04-13 07:56:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 367 transitions. [2018-04-13 07:56:44,143 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 367 transitions. Word has length 63 [2018-04-13 07:56:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:44,143 INFO L459 AbstractCegarLoop]: Abstraction has 323 states and 367 transitions. [2018-04-13 07:56:44,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 07:56:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 367 transitions. [2018-04-13 07:56:44,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-13 07:56:44,143 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:44,143 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-13 07:56:44,143 INFO L408 AbstractCegarLoop]: === Iteration 65 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:44,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1175043252, now seen corresponding path program 2 times [2018-04-13 07:56:44,144 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:44,144 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:44,144 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:44,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:56:44,144 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:44,149 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:44,162 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:44,162 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:44,162 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:44,162 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:56:44,176 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:56:44,176 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:44,179 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:44,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:44,189 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,192 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:44,209 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,209 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,210 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 [2018-04-13 07:56:44,210 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:44,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,226 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,226 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-04-13 07:56:44,252 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 [2018-04-13 07:56:44,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:44,253 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,254 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,267 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 [2018-04-13 07:56:44,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:44,269 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,270 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,281 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:58, output treesize:56 [2018-04-13 07:56:44,359 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,359 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 [2018-04-13 07:56:44,359 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,376 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,377 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,377 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,378 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 [2018-04-13 07:56:44,378 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,390 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:85, output treesize:77 [2018-04-13 07:56:44,433 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,435 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,435 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 [2018-04-13 07:56:44,437 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 [2018-04-13 07:56:44,437 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,445 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,461 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,464 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 [2018-04-13 07:56:44,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:44,496 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,501 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,515 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,515 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:100, output treesize:97 [2018-04-13 07:56:44,592 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 [2018-04-13 07:56:44,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:44,594 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,596 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:44,614 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:150, output treesize:167 [2018-04-13 07:56:44,646 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,647 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,652 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 211 treesize of output 184 [2018-04-13 07:56:44,654 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 34 treesize of output 33 [2018-04-13 07:56:44,654 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,667 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,686 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,692 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 [2018-04-13 07:56:44,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:44,693 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,705 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,721 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. [2018-04-13 07:56:44,721 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:235, output treesize:203 [2018-04-13 07:56:44,941 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,942 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:44,942 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 38 treesize of output 55 [2018-04-13 07:56:44,942 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:44,965 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,965 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,966 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,966 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:44,969 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:44,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 158 [2018-04-13 07:56:44,974 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:44,978 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 129 treesize of output 101 [2018-04-13 07:56:44,979 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:45,006 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 86 treesize of output 73 [2018-04-13 07:56:45,006 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,007 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 80 treesize of output 67 [2018-04-13 07:56:45,008 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,028 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:45,033 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 88 treesize of output 80 [2018-04-13 07:56:45,033 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 07:56:45,034 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:45,035 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 82 treesize of output 66 [2018-04-13 07:56:45,035 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,060 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:56:45,089 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 73 treesize of output 59 [2018-04-13 07:56:45,091 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 [2018-04-13 07:56:45,091 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,099 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 [2018-04-13 07:56:45,100 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,107 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:45,107 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 26 treesize of output 18 [2018-04-13 07:56:45,107 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,112 INFO L267 ElimStorePlain]: Start of recursive call 9: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,115 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 73 treesize of output 59 [2018-04-13 07:56:45,117 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 [2018-04-13 07:56:45,117 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,125 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 [2018-04-13 07:56:45,126 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,133 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:45,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-04-13 07:56:45,134 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,138 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,155 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,155 INFO L202 ElimStorePlain]: Needed 16 recursive calls to eliminate 7 variables, input treesize:224, output treesize:11 [2018-04-13 07:56:45,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-13 07:56:45,207 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:45,207 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 [2018-04-13 07:56:45,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,209 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,211 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:45,211 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2018-04-13 07:56:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:45,248 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:45,248 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 07:56:45,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 07:56:45,249 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 07:56:45,249 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2018-04-13 07:56:45,249 INFO L87 Difference]: Start difference. First operand 323 states and 367 transitions. Second operand 26 states. [2018-04-13 07:56:47,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:47,464 INFO L93 Difference]: Finished difference Result 369 states and 409 transitions. [2018-04-13 07:56:47,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:56:47,464 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 63 [2018-04-13 07:56:47,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:47,465 INFO L225 Difference]: With dead ends: 369 [2018-04-13 07:56:47,465 INFO L226 Difference]: Without dead ends: 369 [2018-04-13 07:56:47,465 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=303, Invalid=2247, Unknown=0, NotChecked=0, Total=2550 [2018-04-13 07:56:47,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-04-13 07:56:47,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 316. [2018-04-13 07:56:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-04-13 07:56:47,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 354 transitions. [2018-04-13 07:56:47,467 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 354 transitions. Word has length 63 [2018-04-13 07:56:47,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:47,467 INFO L459 AbstractCegarLoop]: Abstraction has 316 states and 354 transitions. [2018-04-13 07:56:47,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 07:56:47,467 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 354 transitions. [2018-04-13 07:56:47,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-13 07:56:47,467 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:47,467 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:56:47,467 INFO L408 AbstractCegarLoop]: === Iteration 66 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:47,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1271703833, now seen corresponding path program 3 times [2018-04-13 07:56:47,467 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:47,467 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:47,468 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:47,468 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:47,468 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:47,472 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:47,476 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:47,476 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:47,476 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:47,476 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:56:47,489 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-13 07:56:47,489 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:47,491 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:47,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:47,493 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,495 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,495 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:47,508 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,509 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:56:47,509 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,515 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,515 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-04-13 07:56:47,534 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 [2018-04-13 07:56:47,535 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 [2018-04-13 07:56:47,535 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,536 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,545 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 [2018-04-13 07:56:47,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:47,546 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,547 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,554 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,554 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:50, output treesize:45 [2018-04-13 07:56:47,591 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,592 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,592 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,592 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 [2018-04-13 07:56:47,593 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,600 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:58 [2018-04-13 07:56:47,627 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,628 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,629 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 [2018-04-13 07:56:47,630 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 [2018-04-13 07:56:47,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,644 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,646 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 [2018-04-13 07:56:47,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:47,647 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,651 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,658 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,658 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:81, output treesize:72 [2018-04-13 07:56:47,711 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 [2018-04-13 07:56:47,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:47,712 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,713 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,721 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,722 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:140, output treesize:169 [2018-04-13 07:56:47,744 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,746 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,750 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 249 treesize of output 222 [2018-04-13 07:56:47,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:47,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,760 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,771 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,777 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 236 treesize of output 228 [2018-04-13 07:56:47,778 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:47,778 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,788 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,798 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,799 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:261, output treesize:217 [2018-04-13 07:56:47,959 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,961 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:47,961 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 201 treesize of output 158 [2018-04-13 07:56:47,963 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 1 [2018-04-13 07:56:47,963 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 95 [2018-04-13 07:56:47,973 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:47,981 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 88 treesize of output 45 [2018-04-13 07:56:47,982 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:47,988 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:47,998 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 70 treesize of output 62 [2018-04-13 07:56:47,999 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 50 treesize of output 29 [2018-04-13 07:56:47,999 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:48,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 16 [2018-04-13 07:56:48,005 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:48,008 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 [2018-04-13 07:56:48,009 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:48,011 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:48,014 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:48,015 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:208, output treesize:11 [2018-04-13 07:56:48,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-13 07:56:48,071 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:48,071 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 [2018-04-13 07:56:48,071 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:48,073 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:48,075 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:48,076 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2018-04-13 07:56:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:48,103 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:48,103 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 07:56:48,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 07:56:48,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 07:56:48,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2018-04-13 07:56:48,104 INFO L87 Difference]: Start difference. First operand 316 states and 354 transitions. Second operand 24 states. [2018-04-13 07:56:49,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:49,872 INFO L93 Difference]: Finished difference Result 393 states and 433 transitions. [2018-04-13 07:56:49,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 07:56:49,872 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 63 [2018-04-13 07:56:49,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:49,873 INFO L225 Difference]: With dead ends: 393 [2018-04-13 07:56:49,873 INFO L226 Difference]: Without dead ends: 393 [2018-04-13 07:56:49,873 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=280, Invalid=1976, Unknown=0, NotChecked=0, Total=2256 [2018-04-13 07:56:49,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-04-13 07:56:49,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 319. [2018-04-13 07:56:49,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2018-04-13 07:56:49,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 357 transitions. [2018-04-13 07:56:49,875 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 357 transitions. Word has length 63 [2018-04-13 07:56:49,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:49,875 INFO L459 AbstractCegarLoop]: Abstraction has 319 states and 357 transitions. [2018-04-13 07:56:49,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 07:56:49,875 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 357 transitions. [2018-04-13 07:56:49,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-13 07:56:49,876 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:49,876 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2018-04-13 07:56:49,876 INFO L408 AbstractCegarLoop]: === Iteration 67 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:49,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1759868103, now seen corresponding path program 6 times [2018-04-13 07:56:49,876 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:49,876 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:49,876 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:49,876 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:49,876 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:49,881 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:49,883 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:49,883 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:49,883 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:49,883 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-13 07:56:49,896 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-04-13 07:56:49,896 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:49,898 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:49,899 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 6 treesize of output 5 [2018-04-13 07:56:49,899 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:49,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:49,901 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:49,918 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:49,918 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:49,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:56:49,918 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:49,924 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 [2018-04-13 07:56:49,924 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:49,929 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:49,929 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-13 07:56:49,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:56:49,948 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:49,956 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 [2018-04-13 07:56:49,957 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 [2018-04-13 07:56:49,957 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:49,958 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:49,963 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:49,963 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:49, output treesize:28 [2018-04-13 07:56:50,004 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,004 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,005 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,005 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,006 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 [2018-04-13 07:56:50,006 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:50,015 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:58 [2018-04-13 07:56:50,050 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,052 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 [2018-04-13 07:56:50,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:50,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,057 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,067 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:50,067 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:70 [2018-04-13 07:56:50,137 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,138 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,138 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,139 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,139 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 129 [2018-04-13 07:56:50,139 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,155 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:50,155 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:120, output treesize:144 [2018-04-13 07:56:50,204 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 22 [2018-04-13 07:56:50,205 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:50,205 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,207 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,226 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,227 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:50,231 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 152 treesize of output 136 [2018-04-13 07:56:50,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:50,233 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,246 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:50,263 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:167, output treesize:186 [2018-04-13 07:56:50,293 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 43 treesize of output 15 [2018-04-13 07:56:50,295 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 15 treesize of output 3 [2018-04-13 07:56:50,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,296 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,311 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. [2018-04-13 07:56:50,311 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:261, output treesize:222 [2018-04-13 07:56:50,374 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 231 treesize of output 147 [2018-04-13 07:56:50,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-04-13 07:56:50,376 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,386 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,402 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. [2018-04-13 07:56:50,402 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:245, output treesize:223 [2018-04-13 07:56:50,516 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 218 treesize of output 121 [2018-04-13 07:56:50,518 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 [2018-04-13 07:56:50,519 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:50,529 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:50,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 29 [2018-04-13 07:56:50,530 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:50,542 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 [2018-04-13 07:56:50,542 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:50,549 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:50,560 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. [2018-04-13 07:56:50,560 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:235, output treesize:45 [2018-04-13 07:56:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:50,645 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:50,645 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 07:56:50,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:56:50,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:56:50,645 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2018-04-13 07:56:50,645 INFO L87 Difference]: Start difference. First operand 319 states and 357 transitions. Second operand 27 states. [2018-04-13 07:56:52,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:52,196 INFO L93 Difference]: Finished difference Result 384 states and 426 transitions. [2018-04-13 07:56:52,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 07:56:52,197 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 64 [2018-04-13 07:56:52,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:52,197 INFO L225 Difference]: With dead ends: 384 [2018-04-13 07:56:52,197 INFO L226 Difference]: Without dead ends: 384 [2018-04-13 07:56:52,198 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=345, Invalid=2307, Unknown=0, NotChecked=0, Total=2652 [2018-04-13 07:56:52,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-04-13 07:56:52,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 324. [2018-04-13 07:56:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-04-13 07:56:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 363 transitions. [2018-04-13 07:56:52,199 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 363 transitions. Word has length 64 [2018-04-13 07:56:52,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:52,200 INFO L459 AbstractCegarLoop]: Abstraction has 324 states and 363 transitions. [2018-04-13 07:56:52,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:56:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 363 transitions. [2018-04-13 07:56:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-13 07:56:52,200 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:52,200 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2018-04-13 07:56:52,200 INFO L408 AbstractCegarLoop]: === Iteration 68 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:52,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1759868102, now seen corresponding path program 4 times [2018-04-13 07:56:52,200 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:52,200 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:52,201 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:52,201 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:52,201 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:52,206 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:52,208 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:52,208 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:52,208 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:52,209 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 07:56:52,223 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 07:56:52,223 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:52,225 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:52,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:52,236 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,248 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:56:52,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:52,298 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,310 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,311 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:56:52,312 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,321 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,321 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2018-04-13 07:56:52,348 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 [2018-04-13 07:56:52,350 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 [2018-04-13 07:56:52,350 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,351 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,363 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 [2018-04-13 07:56:52,364 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 10 treesize of output 9 [2018-04-13 07:56:52,364 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,366 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,375 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,376 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:53, output treesize:48 [2018-04-13 07:56:52,455 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,455 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 [2018-04-13 07:56:52,455 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,476 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,477 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,477 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,478 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,479 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 [2018-04-13 07:56:52,479 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:52,498 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:83 [2018-04-13 07:56:52,546 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,549 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 [2018-04-13 07:56:52,551 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 [2018-04-13 07:56:52,551 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,557 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,578 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 [2018-04-13 07:56:52,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:52,580 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,584 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,600 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. [2018-04-13 07:56:52,600 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:114, output treesize:95 [2018-04-13 07:56:52,681 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,682 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,683 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 35 treesize of output 82 [2018-04-13 07:56:52,683 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,705 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,705 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,706 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 [2018-04-13 07:56:52,706 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,721 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. [2018-04-13 07:56:52,721 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:154, output treesize:145 [2018-04-13 07:56:52,915 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,915 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,920 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 [2018-04-13 07:56:52,922 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 [2018-04-13 07:56:52,922 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,934 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,955 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:52,958 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 36 [2018-04-13 07:56:52,960 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 22 treesize of output 21 [2018-04-13 07:56:52,960 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,964 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:52,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:52,985 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:171, output treesize:157 [2018-04-13 07:56:53,081 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 282 treesize of output 174 [2018-04-13 07:56:53,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:53,083 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:53,097 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:53,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:56:53,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:56:53,120 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:53,123 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:53,142 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. [2018-04-13 07:56:53,142 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:300, output treesize:256 [2018-04-13 07:56:53,225 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 247 treesize of output 136 [2018-04-13 07:56:53,227 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 [2018-04-13 07:56:53,227 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:53,241 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 [2018-04-13 07:56:53,241 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:53,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:56:53,255 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:53,267 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:53,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2018-04-13 07:56:53,268 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:53,278 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:53,296 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 [2018-04-13 07:56:53,297 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:53,297 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 [2018-04-13 07:56:53,297 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:53,301 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 [2018-04-13 07:56:53,301 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:53,302 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:53,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:53,312 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:274, output treesize:31 [2018-04-13 07:56:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:53,392 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:53,392 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-13 07:56:53,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 07:56:53,392 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 07:56:53,392 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2018-04-13 07:56:53,392 INFO L87 Difference]: Start difference. First operand 324 states and 363 transitions. Second operand 26 states. [2018-04-13 07:56:55,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:55,628 INFO L93 Difference]: Finished difference Result 416 states and 460 transitions. [2018-04-13 07:56:55,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-13 07:56:55,628 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 64 [2018-04-13 07:56:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:55,629 INFO L225 Difference]: With dead ends: 416 [2018-04-13 07:56:55,629 INFO L226 Difference]: Without dead ends: 416 [2018-04-13 07:56:55,629 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=333, Invalid=2319, Unknown=0, NotChecked=0, Total=2652 [2018-04-13 07:56:55,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2018-04-13 07:56:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 324. [2018-04-13 07:56:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-04-13 07:56:55,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 363 transitions. [2018-04-13 07:56:55,631 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 363 transitions. Word has length 64 [2018-04-13 07:56:55,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:55,631 INFO L459 AbstractCegarLoop]: Abstraction has 324 states and 363 transitions. [2018-04-13 07:56:55,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 07:56:55,631 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 363 transitions. [2018-04-13 07:56:55,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-13 07:56:55,632 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:55,632 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] [2018-04-13 07:56:55,632 INFO L408 AbstractCegarLoop]: === Iteration 69 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:55,632 INFO L82 PathProgramCache]: Analyzing trace with hash 881976335, now seen corresponding path program 2 times [2018-04-13 07:56:55,632 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:55,632 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:55,632 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:55,632 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:55,632 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:55,637 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:55,638 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:55,638 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:55,638 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:55,639 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:56:55,654 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:56:55,654 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:55,656 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:55,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:56:55,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:56:55,667 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,669 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,674 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,674 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-13 07:56:55,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,684 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,684 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 [2018-04-13 07:56:55,684 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,690 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,690 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:34 [2018-04-13 07:56:55,711 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 [2018-04-13 07:56:55,712 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 [2018-04-13 07:56:55,713 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,714 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,721 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,721 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:46 [2018-04-13 07:56:55,758 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,760 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-04-13 07:56:55,761 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:55,761 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,764 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:55,772 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:63, output treesize:65 [2018-04-13 07:56:55,786 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,787 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,787 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,788 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 [2018-04-13 07:56:55,788 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,800 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:55,800 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:76, output treesize:84 [2018-04-13 07:56:55,839 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,842 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 67 treesize of output 68 [2018-04-13 07:56:55,843 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 [2018-04-13 07:56:55,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,858 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:55,872 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:97, output treesize:102 [2018-04-13 07:56:55,938 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,939 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,943 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 [2018-04-13 07:56:55,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:55,944 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:55,973 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. [2018-04-13 07:56:55,973 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:142, output treesize:145 [2018-04-13 07:56:55,998 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:55,999 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:56,000 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:56,000 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:56,000 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 [2018-04-13 07:56:56,001 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,017 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:56,017 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:153, output treesize:145 [2018-04-13 07:56:56,075 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 22 [2018-04-13 07:56:56,076 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:56,076 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,078 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,102 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:56,103 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:56,107 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 156 treesize of output 140 [2018-04-13 07:56:56,109 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 [2018-04-13 07:56:56,109 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,122 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,139 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:56,139 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:168, output treesize:181 [2018-04-13 07:56:56,173 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 228 treesize of output 130 [2018-04-13 07:56:56,174 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 [2018-04-13 07:56:56,175 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,186 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 66 treesize of output 42 [2018-04-13 07:56:56,186 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:56,197 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 [2018-04-13 07:56:56,198 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:56,207 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:56,221 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 19 treesize of output 15 [2018-04-13 07:56:56,222 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 [2018-04-13 07:56:56,223 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,224 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:56,236 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:244, output treesize:58 [2018-04-13 07:56:56,305 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:56,305 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 63 [2018-04-13 07:56:56,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:56:56,307 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,316 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,328 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. [2018-04-13 07:56:56,328 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:66, output treesize:58 [2018-04-13 07:56:56,417 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:56,419 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:56,420 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 54 [2018-04-13 07:56:56,422 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 [2018-04-13 07:56:56,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,431 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 [2018-04-13 07:56:56,431 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,439 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:56:56,439 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 [2018-04-13 07:56:56,439 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,443 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 [2018-04-13 07:56:56,443 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,445 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,454 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:56,454 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 9 variables, input treesize:68, output treesize:3 [2018-04-13 07:56:56,500 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:56:56,500 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:56:56,500 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-13 07:56:56,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:56:56,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:56:56,501 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2018-04-13 07:56:56,501 INFO L87 Difference]: Start difference. First operand 324 states and 363 transitions. Second operand 27 states. [2018-04-13 07:56:59,111 WARN L151 SmtUtils]: Spent 1537ms on a formula simplification. DAG size of input: 115 DAG size of output 113 [2018-04-13 07:56:59,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:56:59,813 INFO L93 Difference]: Finished difference Result 448 states and 496 transitions. [2018-04-13 07:56:59,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:56:59,813 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 64 [2018-04-13 07:56:59,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:56:59,814 INFO L225 Difference]: With dead ends: 448 [2018-04-13 07:56:59,814 INFO L226 Difference]: Without dead ends: 448 [2018-04-13 07:56:59,814 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=363, Invalid=2393, Unknown=0, NotChecked=0, Total=2756 [2018-04-13 07:56:59,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2018-04-13 07:56:59,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 341. [2018-04-13 07:56:59,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2018-04-13 07:56:59,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 383 transitions. [2018-04-13 07:56:59,817 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 383 transitions. Word has length 64 [2018-04-13 07:56:59,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:56:59,817 INFO L459 AbstractCegarLoop]: Abstraction has 341 states and 383 transitions. [2018-04-13 07:56:59,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:56:59,817 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 383 transitions. [2018-04-13 07:56:59,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-13 07:56:59,817 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:56:59,817 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] [2018-04-13 07:56:59,817 INFO L408 AbstractCegarLoop]: === Iteration 70 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:56:59,817 INFO L82 PathProgramCache]: Analyzing trace with hash -277236487, now seen corresponding path program 3 times [2018-04-13 07:56:59,817 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:56:59,817 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:56:59,818 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:59,818 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:56:59,818 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:56:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:56:59,822 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:56:59,824 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:56:59,824 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:56:59,824 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:56:59,824 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:56:59,835 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-13 07:56:59,835 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:56:59,837 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:56:59,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:59,839 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:56:59,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,845 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,846 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:56:59,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:56:59,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:56:59,859 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,860 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,865 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,865 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:27 [2018-04-13 07:56:59,874 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:59,874 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:59,875 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:56:59,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,881 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 [2018-04-13 07:56:59,881 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,887 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,887 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:31 [2018-04-13 07:56:59,906 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 [2018-04-13 07:56:59,906 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,916 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 [2018-04-13 07:56:59,917 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 [2018-04-13 07:56:59,917 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,918 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,925 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,925 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:56, output treesize:35 [2018-04-13 07:56:59,980 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:56:59,982 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 [2018-04-13 07:56:59,983 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 14 treesize of output 13 [2018-04-13 07:56:59,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,986 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:56:59,993 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:56:59,993 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:54 [2018-04-13 07:57:00,007 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,008 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,008 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 [2018-04-13 07:57:00,009 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,017 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:00,017 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:63 [2018-04-13 07:57:00,053 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,055 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 [2018-04-13 07:57:00,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:00,056 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,062 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,073 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:00,073 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:75 [2018-04-13 07:57:00,142 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,154 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 32 treesize of output 106 [2018-04-13 07:57:00,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 76 [2018-04-13 07:57:00,156 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,173 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,176 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 54 treesize of output 71 [2018-04-13 07:57:00,177 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:00,187 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:00,206 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 2 xjuncts. [2018-04-13 07:57:00,206 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:104, output treesize:233 [2018-04-13 07:57:00,258 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,258 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,259 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,259 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 117 treesize of output 133 [2018-04-13 07:57:00,260 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,315 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,315 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,316 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,316 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,317 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 109 treesize of output 125 [2018-04-13 07:57:00,317 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,341 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 2 xjuncts. [2018-04-13 07:57:00,341 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:243, output treesize:213 [2018-04-13 07:57:00,424 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:00,426 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,427 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 115 treesize of output 93 [2018-04-13 07:57:00,429 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 [2018-04-13 07:57:00,429 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,466 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:00,477 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 123 treesize of output 118 [2018-04-13 07:57:00,479 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 134 treesize of output 133 [2018-04-13 07:57:00,479 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,520 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,544 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. [2018-04-13 07:57:00,544 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:239, output treesize:198 [2018-04-13 07:57:00,592 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 93 treesize of output 70 [2018-04-13 07:57:00,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:57:00,593 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:00,602 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 [2018-04-13 07:57:00,602 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,608 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:00,635 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 152 treesize of output 104 [2018-04-13 07:57:00,637 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 94 treesize of output 82 [2018-04-13 07:57:00,637 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:00,665 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 82 treesize of output 66 [2018-04-13 07:57:00,665 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:00,692 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 82 treesize of output 63 [2018-04-13 07:57:00,692 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:00,719 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 63 treesize of output 55 [2018-04-13 07:57:00,719 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:00,745 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 66 treesize of output 51 [2018-04-13 07:57:00,745 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,769 INFO L267 ElimStorePlain]: Start of recursive call 5: 5 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:00,802 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 13 dim-0 vars, and 3 xjuncts. [2018-04-13 07:57:00,803 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:246, output treesize:143 [2018-04-13 07:57:00,889 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 [2018-04-13 07:57:00,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:57:00,890 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:00,903 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. [2018-04-13 07:57:00,903 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:43 [2018-04-13 07:57:01,012 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 [2018-04-13 07:57:01,013 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 [2018-04-13 07:57:01,014 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:01,019 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 [2018-04-13 07:57:01,019 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:01,022 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:01,022 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 [2018-04-13 07:57:01,022 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:01,024 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:01,029 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:01,029 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-04-13 07:57:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:01,070 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:01,070 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-13 07:57:01,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:57:01,071 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:57:01,071 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=636, Unknown=4, NotChecked=0, Total=702 [2018-04-13 07:57:01,071 INFO L87 Difference]: Start difference. First operand 341 states and 383 transitions. Second operand 27 states. [2018-04-13 07:57:02,649 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 110 DAG size of output 110 [2018-04-13 07:57:03,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:03,738 INFO L93 Difference]: Finished difference Result 455 states and 507 transitions. [2018-04-13 07:57:03,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-13 07:57:03,738 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 64 [2018-04-13 07:57:03,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:03,739 INFO L225 Difference]: With dead ends: 455 [2018-04-13 07:57:03,739 INFO L226 Difference]: Without dead ends: 455 [2018-04-13 07:57:03,739 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=310, Invalid=2439, Unknown=7, NotChecked=0, Total=2756 [2018-04-13 07:57:03,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2018-04-13 07:57:03,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 334. [2018-04-13 07:57:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-04-13 07:57:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 376 transitions. [2018-04-13 07:57:03,741 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 376 transitions. Word has length 64 [2018-04-13 07:57:03,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:03,742 INFO L459 AbstractCegarLoop]: Abstraction has 334 states and 376 transitions. [2018-04-13 07:57:03,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:57:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 376 transitions. [2018-04-13 07:57:03,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-04-13 07:57:03,742 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:03,742 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2018-04-13 07:57:03,742 INFO L408 AbstractCegarLoop]: === Iteration 71 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:03,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1745572431, now seen corresponding path program 3 times [2018-04-13 07:57:03,742 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:03,742 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:03,743 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:03,743 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:57:03,743 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:03,747 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:03,748 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:03,748 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:03,748 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:03,748 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:57:03,770 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-13 07:57:03,770 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:57:03,773 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:03,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:03,780 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,785 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 6 treesize of output 5 [2018-04-13 07:57:03,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,789 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,789 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:57:03,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:57:03,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:57:03,822 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,824 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,832 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2018-04-13 07:57:03,842 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:03,843 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 [2018-04-13 07:57:03,843 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,855 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:03,856 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:03,856 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 [2018-04-13 07:57:03,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,871 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:41 [2018-04-13 07:57:03,905 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:57:03,905 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,915 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 [2018-04-13 07:57:03,916 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 [2018-04-13 07:57:03,916 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,917 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,925 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,925 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:61, output treesize:46 [2018-04-13 07:57:03,962 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:03,964 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 19 treesize of output 26 [2018-04-13 07:57:03,965 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 14 treesize of output 13 [2018-04-13 07:57:03,965 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:03,976 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. [2018-04-13 07:57:03,976 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:63, output treesize:65 [2018-04-13 07:57:03,990 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:03,990 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:03,991 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:03,991 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 [2018-04-13 07:57:03,991 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,002 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:04,003 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:76, output treesize:84 [2018-04-13 07:57:04,038 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:04,040 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 67 treesize of output 68 [2018-04-13 07:57:04,041 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 [2018-04-13 07:57:04,042 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,048 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:04,061 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:97, output treesize:96 [2018-04-13 07:57:04,134 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:04,134 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:04,138 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 32 treesize of output 65 [2018-04-13 07:57:04,140 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 [2018-04-13 07:57:04,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,145 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,159 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. [2018-04-13 07:57:04,160 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:137, output treesize:145 [2018-04-13 07:57:04,185 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:04,186 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:04,186 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:04,187 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:04,187 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 [2018-04-13 07:57:04,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:04,203 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:150, output treesize:142 [2018-04-13 07:57:04,253 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:04,254 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:04,258 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 [2018-04-13 07:57:04,260 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 [2018-04-13 07:57:04,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,271 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:04,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:155, output treesize:160 [2018-04-13 07:57:04,319 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 [2018-04-13 07:57:04,320 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 [2018-04-13 07:57:04,320 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:04,330 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 [2018-04-13 07:57:04,330 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:04,339 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 [2018-04-13 07:57:04,339 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,346 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:04,356 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. [2018-04-13 07:57:04,357 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:202, output treesize:55 [2018-04-13 07:57:04,435 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 [2018-04-13 07:57:04,436 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 8 treesize of output 7 [2018-04-13 07:57:04,436 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,444 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,455 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. [2018-04-13 07:57:04,456 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:66, output treesize:62 [2018-04-13 07:57:04,567 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 [2018-04-13 07:57:04,568 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 [2018-04-13 07:57:04,569 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,576 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 [2018-04-13 07:57:04,576 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,580 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:04,581 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 [2018-04-13 07:57:04,581 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,584 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 [2018-04-13 07:57:04,584 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,585 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:04,593 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 10 variables, input treesize:72, output treesize:3 [2018-04-13 07:57:04,632 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:04,632 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:04,633 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-13 07:57:04,633 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:57:04,633 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:57:04,633 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2018-04-13 07:57:04,633 INFO L87 Difference]: Start difference. First operand 334 states and 376 transitions. Second operand 27 states. [2018-04-13 07:57:07,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:07,028 INFO L93 Difference]: Finished difference Result 452 states and 501 transitions. [2018-04-13 07:57:07,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-13 07:57:07,028 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 64 [2018-04-13 07:57:07,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:07,029 INFO L225 Difference]: With dead ends: 452 [2018-04-13 07:57:07,029 INFO L226 Difference]: Without dead ends: 452 [2018-04-13 07:57:07,029 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=339, Invalid=2417, Unknown=0, NotChecked=0, Total=2756 [2018-04-13 07:57:07,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2018-04-13 07:57:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 324. [2018-04-13 07:57:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-04-13 07:57:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 363 transitions. [2018-04-13 07:57:07,032 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 363 transitions. Word has length 64 [2018-04-13 07:57:07,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:07,032 INFO L459 AbstractCegarLoop]: Abstraction has 324 states and 363 transitions. [2018-04-13 07:57:07,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:57:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 363 transitions. [2018-04-13 07:57:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-04-13 07:57:07,032 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:07,032 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, 1, 1, 1, 1, 1] [2018-04-13 07:57:07,032 INFO L408 AbstractCegarLoop]: === Iteration 72 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:07,032 INFO L82 PathProgramCache]: Analyzing trace with hash -105919928, now seen corresponding path program 1 times [2018-04-13 07:57:07,032 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:07,032 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:07,033 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:07,033 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:57:07,033 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:07,037 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:07,039 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:07,039 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:07,039 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:07,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:07,051 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:07,053 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 6 treesize of output 5 [2018-04-13 07:57:07,053 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,055 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:57:07,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:07,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:07,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:57:07,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,078 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,078 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:17 [2018-04-13 07:57:07,101 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 [2018-04-13 07:57:07,102 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 [2018-04-13 07:57:07,102 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,103 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,110 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:35 [2018-04-13 07:57:07,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:07,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:07,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:57:07,159 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:07,164 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:46, output treesize:40 [2018-04-13 07:57:07,190 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:07,192 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 [2018-04-13 07:57:07,193 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 [2018-04-13 07:57:07,193 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,198 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,204 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:07,204 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:53, output treesize:46 [2018-04-13 07:57:07,264 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 3 case distinctions, treesize of input 74 treesize of output 72 [2018-04-13 07:57:07,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 80 [2018-04-13 07:57:07,265 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,282 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:07,286 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 2 case distinctions, treesize of input 48 treesize of output 65 [2018-04-13 07:57:07,286 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:07,297 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:07,309 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 2 xjuncts. [2018-04-13 07:57:07,309 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:80, output treesize:107 [2018-04-13 07:57:07,381 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 1 case distinctions, treesize of input 73 treesize of output 67 [2018-04-13 07:57:07,386 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 45 treesize of output 46 [2018-04-13 07:57:07,386 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:07,411 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 34 treesize of output 31 [2018-04-13 07:57:07,412 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:07,416 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 38 treesize of output 35 [2018-04-13 07:57:07,416 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:07,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 50 [2018-04-13 07:57:07,450 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:07,482 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 30 treesize of output 26 [2018-04-13 07:57:07,483 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,483 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 38 treesize of output 30 [2018-04-13 07:57:07,484 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,511 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 22 treesize of output 15 [2018-04-13 07:57:07,511 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,512 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 22 treesize of output 15 [2018-04-13 07:57:07,512 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,525 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:07,541 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 51 treesize of output 44 [2018-04-13 07:57:07,545 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 [2018-04-13 07:57:07,545 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:07,552 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 7 treesize of output 1 [2018-04-13 07:57:07,552 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:07,556 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:07,571 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-13 07:57:07,571 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 9 variables, input treesize:125, output treesize:13 [2018-04-13 07:57:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 07:57:07,617 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:07,617 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:57:07,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 07:57:07,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 07:57:07,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2018-04-13 07:57:07,618 INFO L87 Difference]: Start difference. First operand 324 states and 363 transitions. Second operand 21 states. [2018-04-13 07:57:08,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:08,708 INFO L93 Difference]: Finished difference Result 404 states and 445 transitions. [2018-04-13 07:57:08,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-13 07:57:08,708 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 65 [2018-04-13 07:57:08,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:08,709 INFO L225 Difference]: With dead ends: 404 [2018-04-13 07:57:08,709 INFO L226 Difference]: Without dead ends: 403 [2018-04-13 07:57:08,709 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=248, Invalid=1392, Unknown=0, NotChecked=0, Total=1640 [2018-04-13 07:57:08,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2018-04-13 07:57:08,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 330. [2018-04-13 07:57:08,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-04-13 07:57:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 369 transitions. [2018-04-13 07:57:08,711 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 369 transitions. Word has length 65 [2018-04-13 07:57:08,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:08,711 INFO L459 AbstractCegarLoop]: Abstraction has 330 states and 369 transitions. [2018-04-13 07:57:08,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 07:57:08,711 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 369 transitions. [2018-04-13 07:57:08,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-04-13 07:57:08,711 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:08,711 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, 1, 1, 1, 1, 1] [2018-04-13 07:57:08,712 INFO L408 AbstractCegarLoop]: === Iteration 73 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:08,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1182206581, now seen corresponding path program 1 times [2018-04-13 07:57:08,712 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:08,712 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:08,712 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:08,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:08,712 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:08,717 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:08,719 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:08,719 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:08,719 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:08,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:08,737 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:08,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:08,744 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:08,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,752 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,752 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:57:08,781 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:08,782 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:08,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:57:08,782 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,792 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 [2018-04-13 07:57:08,792 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,801 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,801 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-13 07:57:08,842 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 [2018-04-13 07:57:08,842 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,870 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 [2018-04-13 07:57:08,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:08,872 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,874 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,885 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,885 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:55, output treesize:46 [2018-04-13 07:57:08,925 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:08,926 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:08,926 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:08,926 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-04-13 07:57:08,927 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:08,932 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:57, output treesize:50 [2018-04-13 07:57:08,972 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:08,974 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 53 treesize of output 54 [2018-04-13 07:57:08,975 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 [2018-04-13 07:57:08,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,980 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:08,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:08,987 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:62 [2018-04-13 07:57:09,049 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 96 treesize of output 75 [2018-04-13 07:57:09,050 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 22 treesize of output 21 [2018-04-13 07:57:09,050 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:09,056 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:09,064 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. [2018-04-13 07:57:09,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:102, output treesize:86 [2018-04-13 07:57:09,135 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 89 treesize of output 65 [2018-04-13 07:57:09,139 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 36 treesize of output 29 [2018-04-13 07:57:09,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:09,148 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 [2018-04-13 07:57:09,148 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:09,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-04-13 07:57:09,155 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:09,156 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 [2018-04-13 07:57:09,156 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:09,159 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:09,164 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-13 07:57:09,165 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:95, output treesize:13 [2018-04-13 07:57:09,209 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 07:57:09,209 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:09,209 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:57:09,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-13 07:57:09,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-13 07:57:09,209 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2018-04-13 07:57:09,210 INFO L87 Difference]: Start difference. First operand 330 states and 369 transitions. Second operand 21 states. [2018-04-13 07:57:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:10,326 INFO L93 Difference]: Finished difference Result 396 states and 437 transitions. [2018-04-13 07:57:10,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-13 07:57:10,326 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 65 [2018-04-13 07:57:10,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:10,327 INFO L225 Difference]: With dead ends: 396 [2018-04-13 07:57:10,327 INFO L226 Difference]: Without dead ends: 395 [2018-04-13 07:57:10,327 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2018-04-13 07:57:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2018-04-13 07:57:10,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 330. [2018-04-13 07:57:10,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-04-13 07:57:10,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 369 transitions. [2018-04-13 07:57:10,329 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 369 transitions. Word has length 65 [2018-04-13 07:57:10,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:10,329 INFO L459 AbstractCegarLoop]: Abstraction has 330 states and 369 transitions. [2018-04-13 07:57:10,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-13 07:57:10,329 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 369 transitions. [2018-04-13 07:57:10,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-13 07:57:10,330 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:10,330 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] [2018-04-13 07:57:10,330 INFO L408 AbstractCegarLoop]: === Iteration 74 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:10,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1795902265, now seen corresponding path program 1 times [2018-04-13 07:57:10,330 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:10,330 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:10,330 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:10,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:10,330 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:10,334 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:10,337 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:10,337 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:10,337 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:10,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:10,348 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:10,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:10,359 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:10,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,367 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:57:10,395 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:10,395 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 [2018-04-13 07:57:10,395 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,419 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:10,419 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:10,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:57:10,420 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,426 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,426 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:27 [2018-04-13 07:57:10,449 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 [2018-04-13 07:57:10,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:10,450 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,452 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,462 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 [2018-04-13 07:57:10,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:10,464 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,465 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,473 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,473 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:50, output treesize:45 [2018-04-13 07:57:10,521 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 84 treesize of output 78 [2018-04-13 07:57:10,522 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 22 treesize of output 21 [2018-04-13 07:57:10,522 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,528 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,540 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 62 treesize of output 63 [2018-04-13 07:57:10,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:10,541 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,546 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,554 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,554 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:101, output treesize:81 [2018-04-13 07:57:10,592 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 20 treesize of output 8 [2018-04-13 07:57:10,592 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,596 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:50 [2018-04-13 07:57:10,703 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 69 treesize of output 56 [2018-04-13 07:57:10,704 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 33 treesize of output 27 [2018-04-13 07:57:10,704 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:10,712 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 [2018-04-13 07:57:10,712 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:10,717 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:10,729 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 29 [2018-04-13 07:57:10,733 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 17 treesize of output 14 [2018-04-13 07:57:10,733 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:10,738 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 3 [2018-04-13 07:57:10,738 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,739 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 6 [2018-04-13 07:57:10,739 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,742 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:10,744 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 46 treesize of output 36 [2018-04-13 07:57:10,745 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:10,745 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 17 treesize of output 10 [2018-04-13 07:57:10,745 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,749 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 6 [2018-04-13 07:57:10,749 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,750 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:10,760 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-04-13 07:57:10,760 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:76, output treesize:24 [2018-04-13 07:57:10,820 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:10,820 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:10,820 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-13 07:57:10,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 07:57:10,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 07:57:10,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2018-04-13 07:57:10,821 INFO L87 Difference]: Start difference. First operand 330 states and 369 transitions. Second operand 20 states. [2018-04-13 07:57:11,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:11,841 INFO L93 Difference]: Finished difference Result 374 states and 414 transitions. [2018-04-13 07:57:11,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-13 07:57:11,842 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 66 [2018-04-13 07:57:11,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:11,842 INFO L225 Difference]: With dead ends: 374 [2018-04-13 07:57:11,842 INFO L226 Difference]: Without dead ends: 342 [2018-04-13 07:57:11,843 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=206, Invalid=1126, Unknown=0, NotChecked=0, Total=1332 [2018-04-13 07:57:11,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-04-13 07:57:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 319. [2018-04-13 07:57:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2018-04-13 07:57:11,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 357 transitions. [2018-04-13 07:57:11,846 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 357 transitions. Word has length 66 [2018-04-13 07:57:11,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:11,846 INFO L459 AbstractCegarLoop]: Abstraction has 319 states and 357 transitions. [2018-04-13 07:57:11,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 07:57:11,846 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 357 transitions. [2018-04-13 07:57:11,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-13 07:57:11,846 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:11,847 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] [2018-04-13 07:57:11,847 INFO L408 AbstractCegarLoop]: === Iteration 75 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:11,847 INFO L82 PathProgramCache]: Analyzing trace with hash 2098323616, now seen corresponding path program 1 times [2018-04-13 07:57:11,847 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:11,847 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:11,847 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:11,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:11,848 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:11,852 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:11,853 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:11,853 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:11,853 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:11,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:11,869 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:11,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:11,871 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,873 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 6 treesize of output 5 [2018-04-13 07:57:11,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,875 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:57:11,891 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:11,891 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 [2018-04-13 07:57:11,891 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,897 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:11,897 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:11,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:57:11,898 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,902 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-13 07:57:11,917 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 [2018-04-13 07:57:11,918 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 [2018-04-13 07:57:11,918 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,925 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,925 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:40 [2018-04-13 07:57:11,972 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 37 treesize of output 17 [2018-04-13 07:57:11,972 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,983 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 61 treesize of output 55 [2018-04-13 07:57:11,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:11,985 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:11,990 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:12,000 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 25 treesize of output 16 [2018-04-13 07:57:12,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:12,001 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:12,002 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:12,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:12,010 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:103, output treesize:53 [2018-04-13 07:57:12,165 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:12,165 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:12,167 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 69 [2018-04-13 07:57:12,169 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:12,169 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 28 [2018-04-13 07:57:12,169 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:12,179 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 [2018-04-13 07:57:12,179 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:12,186 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:12,200 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 26 treesize of output 22 [2018-04-13 07:57:12,205 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 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-13 07:57:12,205 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:12,210 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:12,211 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 31 treesize of output 27 [2018-04-13 07:57:12,212 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:12,213 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 [2018-04-13 07:57:12,213 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:12,215 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:12,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-13 07:57:12,230 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 5 variables, input treesize:79, output treesize:29 [2018-04-13 07:57:12,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 07:57:12,305 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:12,305 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-04-13 07:57:12,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-13 07:57:12,306 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-13 07:57:12,306 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2018-04-13 07:57:12,306 INFO L87 Difference]: Start difference. First operand 319 states and 357 transitions. Second operand 20 states. [2018-04-13 07:57:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:13,452 INFO L93 Difference]: Finished difference Result 342 states and 381 transitions. [2018-04-13 07:57:13,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-04-13 07:57:13,452 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 66 [2018-04-13 07:57:13,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:13,453 INFO L225 Difference]: With dead ends: 342 [2018-04-13 07:57:13,453 INFO L226 Difference]: Without dead ends: 310 [2018-04-13 07:57:13,453 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=243, Invalid=1397, Unknown=0, NotChecked=0, Total=1640 [2018-04-13 07:57:13,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-04-13 07:57:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 293. [2018-04-13 07:57:13,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2018-04-13 07:57:13,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 330 transitions. [2018-04-13 07:57:13,455 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 330 transitions. Word has length 66 [2018-04-13 07:57:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:13,455 INFO L459 AbstractCegarLoop]: Abstraction has 293 states and 330 transitions. [2018-04-13 07:57:13,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-13 07:57:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 330 transitions. [2018-04-13 07:57:13,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-13 07:57:13,456 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:13,456 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2018-04-13 07:57:13,456 INFO L408 AbstractCegarLoop]: === Iteration 76 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:13,456 INFO L82 PathProgramCache]: Analyzing trace with hash -767487113, now seen corresponding path program 6 times [2018-04-13 07:57:13,456 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:13,456 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:13,457 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:13,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:13,457 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:13,466 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:13,469 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:13,469 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:13,469 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:13,469 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-13 07:57:13,490 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2018-04-13 07:57:13,490 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:57:13,492 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:13,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:13,494 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:13,497 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,499 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:57:13,522 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,522 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 [2018-04-13 07:57:13,522 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,531 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,532 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,532 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 [2018-04-13 07:57:13,532 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,539 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,539 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:31 [2018-04-13 07:57:13,563 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 [2018-04-13 07:57:13,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:13,564 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,565 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,574 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,574 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:56 [2018-04-13 07:57:13,639 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,639 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,640 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,640 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 [2018-04-13 07:57:13,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,658 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 [2018-04-13 07:57:13,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,670 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:13,671 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:82, output treesize:89 [2018-04-13 07:57:13,711 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,713 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,713 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 [2018-04-13 07:57:13,715 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 [2018-04-13 07:57:13,715 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,722 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:13,736 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:114, output treesize:104 [2018-04-13 07:57:13,832 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,833 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,833 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,834 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,834 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 [2018-04-13 07:57:13,834 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,861 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,867 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,867 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,868 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,869 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,869 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 [2018-04-13 07:57:13,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,889 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. [2018-04-13 07:57:13,889 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:160, output treesize:151 [2018-04-13 07:57:13,945 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,945 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,946 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,948 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:13,950 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 [2018-04-13 07:57:13,952 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 [2018-04-13 07:57:13,952 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,965 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,986 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 22 [2018-04-13 07:57:13,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:13,988 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:13,989 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:14,009 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:179, output treesize:186 [2018-04-13 07:57:14,039 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 43 treesize of output 15 [2018-04-13 07:57:14,041 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 [2018-04-13 07:57:14,041 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,042 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,060 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. [2018-04-13 07:57:14,060 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:285, output treesize:246 [2018-04-13 07:57:14,144 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:14,149 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:14,151 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 251 treesize of output 179 [2018-04-13 07:57:14,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2018-04-13 07:57:14,153 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,166 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,183 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. [2018-04-13 07:57:14,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:269, output treesize:247 [2018-04-13 07:57:14,461 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:14,462 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:14,462 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:14,463 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:14,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 198 [2018-04-13 07:57:14,463 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,486 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:14,487 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:14,488 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:14,488 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:14,489 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:14,493 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 180 treesize of output 138 [2018-04-13 07:57:14,495 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 45 treesize of output 29 [2018-04-13 07:57:14,495 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,502 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:14,502 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 37 treesize of output 25 [2018-04-13 07:57:14,502 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,507 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:14,507 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 17 treesize of output 16 [2018-04-13 07:57:14,507 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,510 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:14,517 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. [2018-04-13 07:57:14,517 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 8 variables, input treesize:288, output treesize:5 [2018-04-13 07:57:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:14,593 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:14,594 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-13 07:57:14,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-13 07:57:14,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-13 07:57:14,594 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2018-04-13 07:57:14,594 INFO L87 Difference]: Start difference. First operand 293 states and 330 transitions. Second operand 30 states. [2018-04-13 07:57:16,136 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 125 DAG size of output 123 [2018-04-13 07:57:18,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:18,203 INFO L93 Difference]: Finished difference Result 417 states and 463 transitions. [2018-04-13 07:57:18,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-13 07:57:18,203 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 66 [2018-04-13 07:57:18,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:18,204 INFO L225 Difference]: With dead ends: 417 [2018-04-13 07:57:18,204 INFO L226 Difference]: Without dead ends: 417 [2018-04-13 07:57:18,205 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 937 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=470, Invalid=3312, Unknown=0, NotChecked=0, Total=3782 [2018-04-13 07:57:18,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2018-04-13 07:57:18,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 319. [2018-04-13 07:57:18,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2018-04-13 07:57:18,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 361 transitions. [2018-04-13 07:57:18,207 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 361 transitions. Word has length 66 [2018-04-13 07:57:18,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:18,207 INFO L459 AbstractCegarLoop]: Abstraction has 319 states and 361 transitions. [2018-04-13 07:57:18,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-13 07:57:18,207 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 361 transitions. [2018-04-13 07:57:18,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-13 07:57:18,207 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:18,207 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2018-04-13 07:57:18,207 INFO L408 AbstractCegarLoop]: === Iteration 77 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:18,208 INFO L82 PathProgramCache]: Analyzing trace with hash -767487112, now seen corresponding path program 5 times [2018-04-13 07:57:18,208 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:18,208 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:18,208 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:18,208 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:57:18,208 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:18,213 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:18,216 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:18,216 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:18,216 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:18,217 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-13 07:57:18,240 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2018-04-13 07:57:18,241 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:57:18,244 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:18,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:18,246 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,248 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:57:18,267 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,268 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,268 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 [2018-04-13 07:57:18,268 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,278 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 [2018-04-13 07:57:18,278 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,287 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-04-13 07:57:18,315 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 [2018-04-13 07:57:18,316 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 [2018-04-13 07:57:18,317 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,318 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,331 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 [2018-04-13 07:57:18,333 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 10 treesize of output 9 [2018-04-13 07:57:18,333 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,334 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,344 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:67, output treesize:68 [2018-04-13 07:57:18,393 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 [2018-04-13 07:57:18,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:18,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,396 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,408 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:18,409 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:93, output treesize:90 [2018-04-13 07:57:18,428 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,428 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,429 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,429 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 [2018-04-13 07:57:18,429 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,451 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 [2018-04-13 07:57:18,451 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:18,469 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:110, output treesize:117 [2018-04-13 07:57:18,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-04-13 07:57:18,519 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,541 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,543 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,543 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 [2018-04-13 07:57:18,545 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 [2018-04-13 07:57:18,545 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,550 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,567 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,569 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 [2018-04-13 07:57:18,570 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 16 treesize of output 15 [2018-04-13 07:57:18,571 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,574 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,588 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. [2018-04-13 07:57:18,588 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:152, output treesize:103 [2018-04-13 07:57:18,658 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,660 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 25 treesize of output 44 [2018-04-13 07:57:18,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:18,662 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,666 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,682 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. [2018-04-13 07:57:18,682 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:155, output treesize:146 [2018-04-13 07:57:18,709 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,710 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,710 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,711 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,711 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,712 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,713 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,714 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 27 treesize of output 43 [2018-04-13 07:57:18,714 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,732 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:18,732 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:151, output treesize:143 [2018-04-13 07:57:18,791 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,792 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,792 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,797 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 71 [2018-04-13 07:57:18,799 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:18,799 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,805 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,828 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,828 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,829 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,831 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,833 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 153 [2018-04-13 07:57:18,835 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 [2018-04-13 07:57:18,835 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,847 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,866 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:18,866 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:169, output treesize:161 [2018-04-13 07:57:18,985 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,985 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:18,990 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 107 [2018-04-13 07:57:18,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-04-13 07:57:18,991 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:18,997 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,016 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. [2018-04-13 07:57:19,016 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:226, output treesize:240 [2018-04-13 07:57:19,057 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:19,063 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 113 [2018-04-13 07:57:19,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:19,065 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,073 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,102 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:19,106 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:19,110 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 271 treesize of output 193 [2018-04-13 07:57:19,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:19,112 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,135 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,155 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. [2018-04-13 07:57:19,156 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:317, output treesize:273 [2018-04-13 07:57:19,247 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:19,249 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:19,251 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 256 treesize of output 157 [2018-04-13 07:57:19,253 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 37 [2018-04-13 07:57:19,253 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:19,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:57:19,270 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:19,285 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:19,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2018-04-13 07:57:19,286 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,300 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 [2018-04-13 07:57:19,300 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,310 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:19,331 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 35 treesize of output 39 [2018-04-13 07:57:19,333 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 [2018-04-13 07:57:19,333 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,348 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:19,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-04-13 07:57:19,349 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,355 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 [2018-04-13 07:57:19,355 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,356 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,372 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 1 xjuncts. [2018-04-13 07:57:19,372 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:284, output treesize:43 [2018-04-13 07:57:19,452 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 [2018-04-13 07:57:19,454 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:19,454 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 [2018-04-13 07:57:19,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,460 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 [2018-04-13 07:57:19,460 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,463 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 [2018-04-13 07:57:19,464 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,464 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:19,469 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:47, output treesize:3 [2018-04-13 07:57:19,541 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:19,542 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:19,542 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-13 07:57:19,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-13 07:57:19,542 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-13 07:57:19,542 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2018-04-13 07:57:19,543 INFO L87 Difference]: Start difference. First operand 319 states and 361 transitions. Second operand 29 states. [2018-04-13 07:57:22,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:22,374 INFO L93 Difference]: Finished difference Result 417 states and 461 transitions. [2018-04-13 07:57:22,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-13 07:57:22,374 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 66 [2018-04-13 07:57:22,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:22,375 INFO L225 Difference]: With dead ends: 417 [2018-04-13 07:57:22,375 INFO L226 Difference]: Without dead ends: 417 [2018-04-13 07:57:22,375 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=368, Invalid=2824, Unknown=0, NotChecked=0, Total=3192 [2018-04-13 07:57:22,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2018-04-13 07:57:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 315. [2018-04-13 07:57:22,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-04-13 07:57:22,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 355 transitions. [2018-04-13 07:57:22,377 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 355 transitions. Word has length 66 [2018-04-13 07:57:22,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:22,377 INFO L459 AbstractCegarLoop]: Abstraction has 315 states and 355 transitions. [2018-04-13 07:57:22,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-13 07:57:22,377 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 355 transitions. [2018-04-13 07:57:22,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-13 07:57:22,378 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:22,378 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2018-04-13 07:57:22,378 INFO L408 AbstractCegarLoop]: === Iteration 78 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:22,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1920487905, now seen corresponding path program 7 times [2018-04-13 07:57:22,378 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:22,378 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:22,378 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:22,378 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:57:22,378 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:22,383 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:22,386 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:22,386 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:22,387 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:22,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:22,402 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:22,404 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 6 treesize of output 5 [2018-04-13 07:57:22,404 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,406 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,406 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:57:22,420 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,421 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,421 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 [2018-04-13 07:57:22,421 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,428 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,428 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-04-13 07:57:22,447 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 [2018-04-13 07:57:22,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:22,448 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,459 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 [2018-04-13 07:57:22,460 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 [2018-04-13 07:57:22,460 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,461 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,469 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:53, output treesize:45 [2018-04-13 07:57:22,528 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,529 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,529 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,530 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 [2018-04-13 07:57:22,530 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,553 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,553 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:71, output treesize:79 [2018-04-13 07:57:22,591 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,593 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 [2018-04-13 07:57:22,594 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 16 treesize of output 15 [2018-04-13 07:57:22,595 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,616 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,618 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,619 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 [2018-04-13 07:57:22,620 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 [2018-04-13 07:57:22,620 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,627 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,638 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,639 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:110, output treesize:87 [2018-04-13 07:57:22,715 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,716 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,716 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,717 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,717 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,718 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 [2018-04-13 07:57:22,718 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,729 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:22,730 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:119, output treesize:111 [2018-04-13 07:57:22,768 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,769 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,769 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,772 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,774 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 93 treesize of output 107 [2018-04-13 07:57:22,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:22,776 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,786 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,802 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 45 [2018-04-13 07:57:22,806 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 [2018-04-13 07:57:22,806 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,810 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,825 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. [2018-04-13 07:57:22,825 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:142, output treesize:140 [2018-04-13 07:57:22,906 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 [2018-04-13 07:57:22,908 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-04-13 07:57:22,908 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,910 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,929 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. [2018-04-13 07:57:22,929 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:241, output treesize:255 [2018-04-13 07:57:22,963 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,964 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:22,973 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 305 treesize of output 203 [2018-04-13 07:57:22,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:22,975 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:22,995 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 161 [2018-04-13 07:57:23,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:23,030 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,039 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,062 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. [2018-04-13 07:57:23,062 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:332, output treesize:288 [2018-04-13 07:57:23,142 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 31 treesize of output 31 [2018-04-13 07:57:23,143 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 [2018-04-13 07:57:23,143 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,147 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 [2018-04-13 07:57:23,148 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,148 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,169 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. [2018-04-13 07:57:23,170 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:266, output treesize:236 [2018-04-13 07:57:23,214 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 87 treesize of output 103 [2018-04-13 07:57:23,216 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:23,246 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 18 treesize of output 15 [2018-04-13 07:57:23,246 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,257 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-04-13 07:57:23,257 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,262 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 [2018-04-13 07:57:23,262 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,265 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,282 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. [2018-04-13 07:57:23,282 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:254, output treesize:177 [2018-04-13 07:57:23,405 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:23,406 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:23,406 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:23,407 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:23,411 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 162 treesize of output 120 [2018-04-13 07:57:23,413 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 [2018-04-13 07:57:23,413 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,424 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:23,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2018-04-13 07:57:23,424 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,432 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 15 [2018-04-13 07:57:23,432 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,436 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:23,436 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 14 [2018-04-13 07:57:23,436 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,439 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,447 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:23,447 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:186, output treesize:5 [2018-04-13 07:57:23,511 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:23,511 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:23,511 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-13 07:57:23,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-13 07:57:23,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-13 07:57:23,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2018-04-13 07:57:23,512 INFO L87 Difference]: Start difference. First operand 315 states and 355 transitions. Second operand 30 states. [2018-04-13 07:57:26,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:26,396 INFO L93 Difference]: Finished difference Result 432 states and 481 transitions. [2018-04-13 07:57:26,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-13 07:57:26,396 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 66 [2018-04-13 07:57:26,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:26,397 INFO L225 Difference]: With dead ends: 432 [2018-04-13 07:57:26,397 INFO L226 Difference]: Without dead ends: 432 [2018-04-13 07:57:26,397 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=463, Invalid=3443, Unknown=0, NotChecked=0, Total=3906 [2018-04-13 07:57:26,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2018-04-13 07:57:26,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 334. [2018-04-13 07:57:26,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-04-13 07:57:26,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 379 transitions. [2018-04-13 07:57:26,400 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 379 transitions. Word has length 66 [2018-04-13 07:57:26,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:26,400 INFO L459 AbstractCegarLoop]: Abstraction has 334 states and 379 transitions. [2018-04-13 07:57:26,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-13 07:57:26,400 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 379 transitions. [2018-04-13 07:57:26,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-13 07:57:26,400 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:26,400 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2018-04-13 07:57:26,400 INFO L408 AbstractCegarLoop]: === Iteration 79 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:26,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1920487906, now seen corresponding path program 6 times [2018-04-13 07:57:26,400 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:26,400 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:26,401 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:26,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:26,401 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:26,408 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:26,410 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:26,410 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:26,411 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:26,411 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-13 07:57:26,435 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2018-04-13 07:57:26,435 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:57:26,437 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:26,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:26,470 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,472 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:57:26,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:26,503 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,513 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,514 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:57:26,514 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,523 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:35 [2018-04-13 07:57:26,552 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 [2018-04-13 07:57:26,554 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 [2018-04-13 07:57:26,554 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,555 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,568 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 [2018-04-13 07:57:26,569 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:26,570 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,571 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,581 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,581 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:58, output treesize:59 [2018-04-13 07:57:26,640 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,640 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,641 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,641 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 [2018-04-13 07:57:26,641 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,658 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 18 treesize of output 27 [2018-04-13 07:57:26,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,672 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:26,672 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:94, output treesize:101 [2018-04-13 07:57:26,711 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,713 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,713 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 [2018-04-13 07:57:26,715 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 [2018-04-13 07:57:26,715 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,722 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,741 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,743 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 [2018-04-13 07:57:26,744 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:26,744 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,749 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:26,764 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:129, output treesize:121 [2018-04-13 07:57:26,861 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,862 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,863 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,863 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,864 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,864 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 [2018-04-13 07:57:26,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,884 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 41 treesize of output 100 [2018-04-13 07:57:26,884 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,901 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:26,901 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:198, output treesize:189 [2018-04-13 07:57:26,946 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,946 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,947 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,950 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,952 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 172 treesize of output 180 [2018-04-13 07:57:26,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:26,954 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:26,989 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,989 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,990 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:26,994 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 160 treesize of output 181 [2018-04-13 07:57:26,997 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 [2018-04-13 07:57:26,997 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,008 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,027 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:27,027 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:212, output treesize:201 [2018-04-13 07:57:27,151 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:27,156 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:27,161 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 440 treesize of output 290 [2018-04-13 07:57:27,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-04-13 07:57:27,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,208 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:27,216 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 410 treesize of output 363 [2018-04-13 07:57:27,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-04-13 07:57:27,218 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,235 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,257 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. [2018-04-13 07:57:27,257 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:458, output treesize:402 [2018-04-13 07:57:27,537 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:27,537 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:27,538 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:27,540 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:27,545 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 427 treesize of output 305 [2018-04-13 07:57:27,548 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:27,554 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 86 [2018-04-13 07:57:27,555 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:27,589 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 126 treesize of output 106 [2018-04-13 07:57:27,589 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:27,591 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 120 treesize of output 100 [2018-04-13 07:57:27,592 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:27,628 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:27,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 114 [2018-04-13 07:57:27,628 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,631 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:27,636 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 2 case distinctions, treesize of input 184 treesize of output 134 [2018-04-13 07:57:27,637 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:27,689 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 101 treesize of output 88 [2018-04-13 07:57:27,690 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,691 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 101 treesize of output 88 [2018-04-13 07:57:27,691 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:27,768 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 106 treesize of output 90 [2018-04-13 07:57:27,769 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:27,770 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 19 treesize of output 15 [2018-04-13 07:57:27,770 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,786 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 3 [2018-04-13 07:57:27,786 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,801 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 5 [2018-04-13 07:57:27,801 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,811 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 [2018-04-13 07:57:27,811 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,820 INFO L267 ElimStorePlain]: Start of recursive call 10: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,825 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 106 treesize of output 90 [2018-04-13 07:57:27,827 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:27,827 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 26 treesize of output 16 [2018-04-13 07:57:27,828 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,843 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 11 treesize of output 1 [2018-04-13 07:57:27,843 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,856 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 [2018-04-13 07:57:27,856 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,867 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:27,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-04-13 07:57:27,868 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,877 INFO L267 ElimStorePlain]: Start of recursive call 15: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:27,903 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 2 xjuncts. [2018-04-13 07:57:27,903 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 7 variables, input treesize:457, output treesize:63 [2018-04-13 07:57:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:28,062 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:28,062 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-13 07:57:28,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-13 07:57:28,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-13 07:57:28,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2018-04-13 07:57:28,063 INFO L87 Difference]: Start difference. First operand 334 states and 379 transitions. Second operand 28 states. [2018-04-13 07:57:32,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:32,555 INFO L93 Difference]: Finished difference Result 447 states and 500 transitions. [2018-04-13 07:57:32,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-13 07:57:32,555 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 66 [2018-04-13 07:57:32,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:32,556 INFO L225 Difference]: With dead ends: 447 [2018-04-13 07:57:32,556 INFO L226 Difference]: Without dead ends: 447 [2018-04-13 07:57:32,556 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=349, Invalid=2621, Unknown=0, NotChecked=0, Total=2970 [2018-04-13 07:57:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2018-04-13 07:57:32,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 330. [2018-04-13 07:57:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-04-13 07:57:32,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 374 transitions. [2018-04-13 07:57:32,566 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 374 transitions. Word has length 66 [2018-04-13 07:57:32,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:32,566 INFO L459 AbstractCegarLoop]: Abstraction has 330 states and 374 transitions. [2018-04-13 07:57:32,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-13 07:57:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 374 transitions. [2018-04-13 07:57:32,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-13 07:57:32,566 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:32,566 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:57:32,566 INFO L408 AbstractCegarLoop]: === Iteration 80 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:32,567 INFO L82 PathProgramCache]: Analyzing trace with hash 219673015, now seen corresponding path program 7 times [2018-04-13 07:57:32,567 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:32,567 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:32,567 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:32,567 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:57:32,567 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:32,572 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:32,576 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:32,577 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:32,577 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:32,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:32,597 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:32,599 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 6 treesize of output 5 [2018-04-13 07:57:32,599 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:32,603 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,606 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,606 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:57:32,626 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,626 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 [2018-04-13 07:57:32,626 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,635 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,635 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,635 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:57:32,636 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,640 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,640 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-13 07:57:32,656 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 [2018-04-13 07:57:32,658 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 [2018-04-13 07:57:32,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,660 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,673 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 [2018-04-13 07:57:32,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:32,675 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,676 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,686 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:55, output treesize:47 [2018-04-13 07:57:32,753 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,754 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,754 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 [2018-04-13 07:57:32,754 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,770 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,770 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,771 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,771 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,772 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 42 [2018-04-13 07:57:32,772 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,786 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,786 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:74, output treesize:79 [2018-04-13 07:57:32,835 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,837 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,837 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 47 treesize of output 59 [2018-04-13 07:57:32,839 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 [2018-04-13 07:57:32,839 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,846 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,863 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,865 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 28 treesize of output 33 [2018-04-13 07:57:32,867 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:32,867 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,872 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:32,886 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:110, output treesize:91 [2018-04-13 07:57:32,981 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,982 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,982 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,983 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:32,984 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 36 treesize of output 101 [2018-04-13 07:57:32,984 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,006 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,006 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,007 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,008 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,008 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,009 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 [2018-04-13 07:57:33,009 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:33,024 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:132, output treesize:123 [2018-04-13 07:57:33,081 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,084 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 39 [2018-04-13 07:57:33,085 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:33,086 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,091 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,113 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,113 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,114 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,117 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,119 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 124 treesize of output 132 [2018-04-13 07:57:33,121 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 [2018-04-13 07:57:33,121 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,134 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,153 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. [2018-04-13 07:57:33,153 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:154, output treesize:142 [2018-04-13 07:57:33,298 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 60 treesize of output 61 [2018-04-13 07:57:33,299 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 26 treesize of output 25 [2018-04-13 07:57:33,299 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,329 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,336 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,338 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 258 treesize of output 184 [2018-04-13 07:57:33,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-04-13 07:57:33,340 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,358 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,379 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. [2018-04-13 07:57:33,379 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:300, output treesize:260 [2018-04-13 07:57:33,513 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,514 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 58 treesize of output 118 [2018-04-13 07:57:33,514 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,537 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 49 treesize of output 45 [2018-04-13 07:57:33,539 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:33,539 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2018-04-13 07:57:33,540 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,545 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 [2018-04-13 07:57:33,545 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,547 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:33,562 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:288, output treesize:192 [2018-04-13 07:57:33,698 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,698 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,699 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:33,699 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:33,704 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 194 treesize of output 154 [2018-04-13 07:57:33,707 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:33,711 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 73 treesize of output 47 [2018-04-13 07:57:33,711 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:33,730 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 61 treesize of output 45 [2018-04-13 07:57:33,731 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:33,732 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 39 [2018-04-13 07:57:33,732 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:33,753 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:33,757 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 2 case distinctions, treesize of input 69 treesize of output 61 [2018-04-13 07:57:33,757 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:33,759 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:33,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-04-13 07:57:33,759 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,797 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 [2018-04-13 07:57:33,797 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:33,814 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:33,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:33,836 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:212, output treesize:57 [2018-04-13 07:57:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:33,946 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:33,946 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-13 07:57:33,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-13 07:57:33,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-13 07:57:33,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2018-04-13 07:57:33,947 INFO L87 Difference]: Start difference. First operand 330 states and 374 transitions. Second operand 30 states. [2018-04-13 07:57:37,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:37,213 INFO L93 Difference]: Finished difference Result 439 states and 490 transitions. [2018-04-13 07:57:37,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-13 07:57:37,213 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 66 [2018-04-13 07:57:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:37,214 INFO L225 Difference]: With dead ends: 439 [2018-04-13 07:57:37,214 INFO L226 Difference]: Without dead ends: 439 [2018-04-13 07:57:37,214 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=390, Invalid=3150, Unknown=0, NotChecked=0, Total=3540 [2018-04-13 07:57:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2018-04-13 07:57:37,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 339. [2018-04-13 07:57:37,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2018-04-13 07:57:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 385 transitions. [2018-04-13 07:57:37,216 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 385 transitions. Word has length 66 [2018-04-13 07:57:37,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:37,216 INFO L459 AbstractCegarLoop]: Abstraction has 339 states and 385 transitions. [2018-04-13 07:57:37,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-13 07:57:37,216 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 385 transitions. [2018-04-13 07:57:37,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-13 07:57:37,216 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:37,217 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:57:37,217 INFO L408 AbstractCegarLoop]: === Iteration 81 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:37,217 INFO L82 PathProgramCache]: Analyzing trace with hash 219673016, now seen corresponding path program 5 times [2018-04-13 07:57:37,217 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:37,217 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:37,217 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:37,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:37,217 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:37,223 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:37,226 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:37,226 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:37,226 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:37,227 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-13 07:57:37,246 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-04-13 07:57:37,247 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:57:37,250 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:37,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:37,252 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,253 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-13 07:57:37,265 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,265 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,266 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:57:37,266 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,272 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,272 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-13 07:57:37,293 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 [2018-04-13 07:57:37,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:37,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,296 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,305 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 [2018-04-13 07:57:37,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:37,306 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,307 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,314 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,314 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:47, output treesize:42 [2018-04-13 07:57:37,358 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,359 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,360 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,360 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 [2018-04-13 07:57:37,360 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,372 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:76 [2018-04-13 07:57:37,413 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,416 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 [2018-04-13 07:57:37,418 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:37,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,436 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,438 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 [2018-04-13 07:57:37,440 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 [2018-04-13 07:57:37,440 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,446 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,456 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,456 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:104, output treesize:106 [2018-04-13 07:57:37,526 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,527 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,527 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,528 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,528 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 [2018-04-13 07:57:37,528 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,538 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,538 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:177, output treesize:169 [2018-04-13 07:57:37,580 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,581 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,585 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 158 treesize of output 179 [2018-04-13 07:57:37,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:37,587 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,617 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,620 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,620 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 151 treesize of output 154 [2018-04-13 07:57:37,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2018-04-13 07:57:37,623 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,634 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,648 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:202, output treesize:166 [2018-04-13 07:57:37,724 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,728 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:37,733 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 453 treesize of output 339 [2018-04-13 07:57:37,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:37,735 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,749 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,768 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 406 treesize of output 374 [2018-04-13 07:57:37,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:37,769 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,781 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:37,794 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. [2018-04-13 07:57:37,794 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:462, output treesize:370 [2018-04-13 07:57:38,015 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:38,019 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:38,020 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 391 treesize of output 282 [2018-04-13 07:57:38,022 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 207 treesize of output 167 [2018-04-13 07:57:38,022 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:38,038 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 96 treesize of output 32 [2018-04-13 07:57:38,038 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:38,052 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 [2018-04-13 07:57:38,052 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:38,073 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:38,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 45 [2018-04-13 07:57:38,074 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:38,084 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:38,101 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 71 treesize of output 67 [2018-04-13 07:57:38,102 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 [2018-04-13 07:57:38,102 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:38,110 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:38,110 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 34 treesize of output 22 [2018-04-13 07:57:38,111 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:38,116 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 [2018-04-13 07:57:38,116 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:38,119 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:38,127 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:38,127 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 6 variables, input treesize:412, output treesize:11 [2018-04-13 07:57:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:38,191 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:38,191 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 07:57:38,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:57:38,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:57:38,191 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2018-04-13 07:57:38,191 INFO L87 Difference]: Start difference. First operand 339 states and 385 transitions. Second operand 27 states. [2018-04-13 07:57:41,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:41,086 INFO L93 Difference]: Finished difference Result 452 states and 505 transitions. [2018-04-13 07:57:41,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-13 07:57:41,086 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 66 [2018-04-13 07:57:41,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:41,087 INFO L225 Difference]: With dead ends: 452 [2018-04-13 07:57:41,087 INFO L226 Difference]: Without dead ends: 452 [2018-04-13 07:57:41,087 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=361, Invalid=2831, Unknown=0, NotChecked=0, Total=3192 [2018-04-13 07:57:41,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2018-04-13 07:57:41,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 320. [2018-04-13 07:57:41,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2018-04-13 07:57:41,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 361 transitions. [2018-04-13 07:57:41,089 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 361 transitions. Word has length 66 [2018-04-13 07:57:41,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:41,089 INFO L459 AbstractCegarLoop]: Abstraction has 320 states and 361 transitions. [2018-04-13 07:57:41,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:57:41,089 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 361 transitions. [2018-04-13 07:57:41,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-13 07:57:41,090 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:41,090 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, 1, 1, 1, 1, 1] [2018-04-13 07:57:41,090 INFO L408 AbstractCegarLoop]: === Iteration 82 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:41,090 INFO L82 PathProgramCache]: Analyzing trace with hash 89393877, now seen corresponding path program 2 times [2018-04-13 07:57:41,090 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:41,090 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:41,090 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:41,090 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:57:41,091 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:41,095 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:41,097 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:41,097 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:41,098 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:41,098 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:57:41,119 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:57:41,120 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:57:41,122 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:41,127 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 [2018-04-13 07:57:41,127 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,129 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,130 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:57:41,153 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:41,153 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:41,154 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 [2018-04-13 07:57:41,154 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,160 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-04-13 07:57:41,181 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 [2018-04-13 07:57:41,183 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 [2018-04-13 07:57:41,183 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,184 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,191 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:36 [2018-04-13 07:57:41,239 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:41,240 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:41,240 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:41,241 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 [2018-04-13 07:57:41,241 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:41,248 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:43 [2018-04-13 07:57:41,279 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:41,282 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 43 treesize of output 44 [2018-04-13 07:57:41,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:41,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,289 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,302 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 [2018-04-13 07:57:41,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:41,303 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,305 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:41,315 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:71, output treesize:72 [2018-04-13 07:57:41,336 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 31 treesize of output 15 [2018-04-13 07:57:41,338 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 [2018-04-13 07:57:41,338 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,348 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. [2018-04-13 07:57:41,348 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:111, output treesize:84 [2018-04-13 07:57:41,412 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 95 treesize of output 74 [2018-04-13 07:57:41,413 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:41,413 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,419 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,427 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. [2018-04-13 07:57:41,427 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:101, output treesize:85 [2018-04-13 07:57:41,470 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 88 treesize of output 64 [2018-04-13 07:57:41,471 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 [2018-04-13 07:57:41,471 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,477 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 [2018-04-13 07:57:41,478 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:41,483 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:41,490 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. [2018-04-13 07:57:41,490 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:94, output treesize:30 [2018-04-13 07:57:41,549 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:41,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-13 07:57:41,549 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:41,552 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:41,552 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:11 [2018-04-13 07:57:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 07:57:41,601 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:41,601 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-13 07:57:41,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-13 07:57:41,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-13 07:57:41,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2018-04-13 07:57:41,601 INFO L87 Difference]: Start difference. First operand 320 states and 361 transitions. Second operand 23 states. [2018-04-13 07:57:42,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:42,808 INFO L93 Difference]: Finished difference Result 367 states and 411 transitions. [2018-04-13 07:57:42,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-13 07:57:42,808 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 68 [2018-04-13 07:57:42,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:42,809 INFO L225 Difference]: With dead ends: 367 [2018-04-13 07:57:42,809 INFO L226 Difference]: Without dead ends: 367 [2018-04-13 07:57:42,809 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=284, Invalid=1786, Unknown=0, NotChecked=0, Total=2070 [2018-04-13 07:57:42,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2018-04-13 07:57:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 315. [2018-04-13 07:57:42,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-04-13 07:57:42,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 355 transitions. [2018-04-13 07:57:42,811 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 355 transitions. Word has length 68 [2018-04-13 07:57:42,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:42,812 INFO L459 AbstractCegarLoop]: Abstraction has 315 states and 355 transitions. [2018-04-13 07:57:42,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-13 07:57:42,812 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 355 transitions. [2018-04-13 07:57:42,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-13 07:57:42,812 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:42,812 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, 1, 1, 1, 1, 1] [2018-04-13 07:57:42,812 INFO L408 AbstractCegarLoop]: === Iteration 83 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:42,812 INFO L82 PathProgramCache]: Analyzing trace with hash 89393878, now seen corresponding path program 1 times [2018-04-13 07:57:42,812 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:42,812 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:42,813 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:42,813 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:57:42,813 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:42,821 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:42,824 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:42,824 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:42,824 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:42,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:42,839 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:42,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:42,841 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,843 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:57:42,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:42,863 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,871 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:42,871 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:42,872 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 [2018-04-13 07:57:42,872 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,878 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-04-13 07:57:42,902 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 [2018-04-13 07:57:42,903 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 [2018-04-13 07:57:42,903 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,914 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 [2018-04-13 07:57:42,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:42,916 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,917 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,925 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,925 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2018-04-13 07:57:42,972 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:42,972 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 [2018-04-13 07:57:42,972 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,984 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:42,984 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:42,985 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:42,985 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 [2018-04-13 07:57:42,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:42,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:42,997 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:65 [2018-04-13 07:57:43,025 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:43,028 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 54 treesize of output 55 [2018-04-13 07:57:43,029 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 [2018-04-13 07:57:43,029 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,035 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,047 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:43,050 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 [2018-04-13 07:57:43,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:43,051 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,054 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,065 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. [2018-04-13 07:57:43,065 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:91, output treesize:83 [2018-04-13 07:57:43,125 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 [2018-04-13 07:57:43,127 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 22 treesize of output 21 [2018-04-13 07:57:43,127 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,131 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,148 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 135 treesize of output 102 [2018-04-13 07:57:43,149 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 22 treesize of output 21 [2018-04-13 07:57:43,149 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,157 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,168 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. [2018-04-13 07:57:43,168 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:166, output treesize:134 [2018-04-13 07:57:43,237 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 [2018-04-13 07:57:43,238 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 [2018-04-13 07:57:43,238 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,249 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 [2018-04-13 07:57:43,250 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:43,262 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 56 treesize of output 40 [2018-04-13 07:57:43,262 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:43,263 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 48 treesize of output 32 [2018-04-13 07:57:43,264 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:43,277 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:43,296 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 [2018-04-13 07:57:43,300 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 [2018-04-13 07:57:43,300 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:43,308 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 [2018-04-13 07:57:43,309 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,315 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:43,317 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 [2018-04-13 07:57:43,318 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:43,319 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 [2018-04-13 07:57:43,319 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,326 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 [2018-04-13 07:57:43,326 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,331 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:43,354 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 3 xjuncts. [2018-04-13 07:57:43,354 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 6 variables, input treesize:152, output treesize:67 [2018-04-13 07:57:43,493 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 07:57:43,493 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:43,493 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:57:43,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-13 07:57:43,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-13 07:57:43,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2018-04-13 07:57:43,494 INFO L87 Difference]: Start difference. First operand 315 states and 355 transitions. Second operand 22 states. [2018-04-13 07:57:44,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:44,904 INFO L93 Difference]: Finished difference Result 387 states and 430 transitions. [2018-04-13 07:57:44,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 07:57:44,904 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 68 [2018-04-13 07:57:44,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:44,905 INFO L225 Difference]: With dead ends: 387 [2018-04-13 07:57:44,905 INFO L226 Difference]: Without dead ends: 387 [2018-04-13 07:57:44,905 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=277, Invalid=1793, Unknown=0, NotChecked=0, Total=2070 [2018-04-13 07:57:44,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-04-13 07:57:44,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 335. [2018-04-13 07:57:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2018-04-13 07:57:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 376 transitions. [2018-04-13 07:57:44,907 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 376 transitions. Word has length 68 [2018-04-13 07:57:44,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:44,908 INFO L459 AbstractCegarLoop]: Abstraction has 335 states and 376 transitions. [2018-04-13 07:57:44,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-13 07:57:44,908 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 376 transitions. [2018-04-13 07:57:44,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-13 07:57:44,908 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:44,908 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:57:44,908 INFO L408 AbstractCegarLoop]: === Iteration 84 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:44,908 INFO L82 PathProgramCache]: Analyzing trace with hash 790898889, now seen corresponding path program 1 times [2018-04-13 07:57:44,908 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:44,908 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:44,909 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:44,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:44,909 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:44,915 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:44,918 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:44,918 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:44,918 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:44,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:44,942 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:44,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:44,948 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:44,950 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:44,950 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:57:44,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:44,972 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:44,982 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:44,982 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:44,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:57:44,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:44,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:44,991 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-04-13 07:57:45,018 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 [2018-04-13 07:57:45,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:45,019 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,020 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,032 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 [2018-04-13 07:57:45,033 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 [2018-04-13 07:57:45,034 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,035 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,044 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,045 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:55, output treesize:56 [2018-04-13 07:57:45,097 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:45,098 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 [2018-04-13 07:57:45,098 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,109 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:45,109 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:45,110 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:45,110 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 [2018-04-13 07:57:45,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,118 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:45,119 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:65 [2018-04-13 07:57:45,148 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:45,150 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 [2018-04-13 07:57:45,151 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-04-13 07:57:45,152 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,168 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:45,170 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 [2018-04-13 07:57:45,171 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 [2018-04-13 07:57:45,172 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,178 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,189 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. [2018-04-13 07:57:45,189 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:91, output treesize:83 [2018-04-13 07:57:45,247 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 [2018-04-13 07:57:45,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:45,249 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,253 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 102 [2018-04-13 07:57:45,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:45,273 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,281 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,291 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. [2018-04-13 07:57:45,291 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:166, output treesize:134 [2018-04-13 07:57:45,351 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 [2018-04-13 07:57:45,352 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 [2018-04-13 07:57:45,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:57:45,361 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:45,371 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 [2018-04-13 07:57:45,372 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:45,383 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:45,403 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 58 treesize of output 52 [2018-04-13 07:57:45,404 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 7 treesize of output 1 [2018-04-13 07:57:45,404 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,421 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:45,422 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 [2018-04-13 07:57:45,422 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,427 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,428 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 [2018-04-13 07:57:45,429 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 [2018-04-13 07:57:45,430 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:45,439 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 [2018-04-13 07:57:45,439 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:45,444 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:45,465 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 3 xjuncts. [2018-04-13 07:57:45,465 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:152, output treesize:67 [2018-04-13 07:57:45,602 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 07:57:45,602 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:45,602 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-04-13 07:57:45,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-13 07:57:45,602 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-13 07:57:45,602 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2018-04-13 07:57:45,603 INFO L87 Difference]: Start difference. First operand 335 states and 376 transitions. Second operand 22 states. [2018-04-13 07:57:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:47,226 INFO L93 Difference]: Finished difference Result 392 states and 435 transitions. [2018-04-13 07:57:47,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 07:57:47,227 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 68 [2018-04-13 07:57:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:47,227 INFO L225 Difference]: With dead ends: 392 [2018-04-13 07:57:47,227 INFO L226 Difference]: Without dead ends: 392 [2018-04-13 07:57:47,228 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=277, Invalid=1793, Unknown=0, NotChecked=0, Total=2070 [2018-04-13 07:57:47,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2018-04-13 07:57:47,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 313. [2018-04-13 07:57:47,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2018-04-13 07:57:47,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 352 transitions. [2018-04-13 07:57:47,230 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 352 transitions. Word has length 68 [2018-04-13 07:57:47,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:47,230 INFO L459 AbstractCegarLoop]: Abstraction has 313 states and 352 transitions. [2018-04-13 07:57:47,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-13 07:57:47,230 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 352 transitions. [2018-04-13 07:57:47,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-13 07:57:47,230 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:47,230 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, 1, 1, 1, 1, 1] [2018-04-13 07:57:47,230 INFO L408 AbstractCegarLoop]: === Iteration 85 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:47,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1635421006, now seen corresponding path program 2 times [2018-04-13 07:57:47,231 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:47,231 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:47,231 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:47,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:47,231 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:47,236 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:47,237 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:47,237 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:47,237 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:47,238 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:57:47,248 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:57:47,248 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:57:47,249 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:47,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:47,251 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:47,255 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,257 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,257 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:57:47,280 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:47,280 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 [2018-04-13 07:57:47,281 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,291 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:47,291 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:47,291 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 [2018-04-13 07:57:47,292 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,297 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,297 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-13 07:57:47,318 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 [2018-04-13 07:57:47,318 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,326 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 [2018-04-13 07:57:47,327 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 [2018-04-13 07:57:47,327 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,328 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,334 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,335 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:54, output treesize:39 [2018-04-13 07:57:47,377 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:47,378 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:47,379 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:47,379 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 [2018-04-13 07:57:47,379 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,386 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:47,386 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:53, output treesize:46 [2018-04-13 07:57:47,414 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:47,416 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 [2018-04-13 07:57:47,418 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 [2018-04-13 07:57:47,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,434 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 [2018-04-13 07:57:47,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:47,436 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,437 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,446 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:47,446 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:74, output treesize:69 [2018-04-13 07:57:47,466 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 31 treesize of output 15 [2018-04-13 07:57:47,467 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 [2018-04-13 07:57:47,468 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,477 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. [2018-04-13 07:57:47,477 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:114, output treesize:87 [2018-04-13 07:57:47,537 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 95 treesize of output 74 [2018-04-13 07:57:47,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:47,538 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,551 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. [2018-04-13 07:57:47,551 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:104, output treesize:88 [2018-04-13 07:57:47,638 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 88 treesize of output 64 [2018-04-13 07:57:47,642 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 30 [2018-04-13 07:57:47,643 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:47,659 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 26 treesize of output 18 [2018-04-13 07:57:47,660 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,660 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 34 treesize of output 26 [2018-04-13 07:57:47,661 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,665 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:47,672 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. [2018-04-13 07:57:47,673 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:94, output treesize:30 [2018-04-13 07:57:47,738 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:47,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-13 07:57:47,739 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:47,741 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:47,741 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:11 [2018-04-13 07:57:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-04-13 07:57:47,796 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:47,796 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-04-13 07:57:47,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 07:57:47,796 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 07:57:47,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2018-04-13 07:57:47,796 INFO L87 Difference]: Start difference. First operand 313 states and 352 transitions. Second operand 25 states. [2018-04-13 07:57:49,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:49,444 INFO L93 Difference]: Finished difference Result 358 states and 401 transitions. [2018-04-13 07:57:49,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 07:57:49,444 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 68 [2018-04-13 07:57:49,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:49,445 INFO L225 Difference]: With dead ends: 358 [2018-04-13 07:57:49,445 INFO L226 Difference]: Without dead ends: 358 [2018-04-13 07:57:49,445 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=325, Invalid=2125, Unknown=0, NotChecked=0, Total=2450 [2018-04-13 07:57:49,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-04-13 07:57:49,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 321. [2018-04-13 07:57:49,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2018-04-13 07:57:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 361 transitions. [2018-04-13 07:57:49,447 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 361 transitions. Word has length 68 [2018-04-13 07:57:49,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:49,448 INFO L459 AbstractCegarLoop]: Abstraction has 321 states and 361 transitions. [2018-04-13 07:57:49,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 07:57:49,448 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 361 transitions. [2018-04-13 07:57:49,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-04-13 07:57:49,448 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:49,448 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, 1, 1, 1, 1, 1] [2018-04-13 07:57:49,448 INFO L408 AbstractCegarLoop]: === Iteration 86 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:49,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1635421005, now seen corresponding path program 1 times [2018-04-13 07:57:49,448 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:49,448 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:49,449 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:49,449 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:57:49,449 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:49,454 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:49,456 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:49,456 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:49,456 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:49,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:49,478 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:49,480 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 6 treesize of output 5 [2018-04-13 07:57:49,481 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,483 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,483 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:57:49,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:49,512 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,521 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:49,521 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:49,521 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 [2018-04-13 07:57:49,522 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,529 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,529 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:35 [2018-04-13 07:57:49,553 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 [2018-04-13 07:57:49,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:49,555 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,556 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,567 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 [2018-04-13 07:57:49,568 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 [2018-04-13 07:57:49,568 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,569 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,578 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,578 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:58, output treesize:59 [2018-04-13 07:57:49,621 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:49,621 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 [2018-04-13 07:57:49,622 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,633 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:49,633 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:49,634 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:49,634 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 [2018-04-13 07:57:49,635 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,642 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:73, output treesize:65 [2018-04-13 07:57:49,674 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:49,677 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 54 treesize of output 55 [2018-04-13 07:57:49,678 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 [2018-04-13 07:57:49,678 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,684 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,697 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:49,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:57:49,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:49,700 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,703 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,714 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:91, output treesize:83 [2018-04-13 07:57:49,778 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 [2018-04-13 07:57:49,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:49,780 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,796 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,810 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 [2018-04-13 07:57:49,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:49,811 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,815 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,825 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. [2018-04-13 07:57:49,825 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:166, output treesize:134 [2018-04-13 07:57:49,932 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 [2018-04-13 07:57:49,937 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 [2018-04-13 07:57:49,937 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:49,951 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 48 treesize of output 32 [2018-04-13 07:57:49,952 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:49,953 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 56 treesize of output 40 [2018-04-13 07:57:49,953 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:49,969 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 [2018-04-13 07:57:49,970 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:49,982 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:50,001 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 [2018-04-13 07:57:50,002 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 [2018-04-13 07:57:50,002 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:50,011 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 [2018-04-13 07:57:50,012 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:50,018 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:57:50,019 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 [2018-04-13 07:57:50,021 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 [2018-04-13 07:57:50,021 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:50,029 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:50,030 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 [2018-04-13 07:57:50,030 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:50,035 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:50,057 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 3 xjuncts. [2018-04-13 07:57:50,057 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 6 variables, input treesize:152, output treesize:67 [2018-04-13 07:57:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-04-13 07:57:50,196 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:50,196 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-04-13 07:57:50,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-13 07:57:50,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-13 07:57:50,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2018-04-13 07:57:50,196 INFO L87 Difference]: Start difference. First operand 321 states and 361 transitions. Second operand 24 states. [2018-04-13 07:57:51,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:51,778 INFO L93 Difference]: Finished difference Result 385 states and 428 transitions. [2018-04-13 07:57:51,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-13 07:57:51,779 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 68 [2018-04-13 07:57:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:51,780 INFO L225 Difference]: With dead ends: 385 [2018-04-13 07:57:51,780 INFO L226 Difference]: Without dead ends: 385 [2018-04-13 07:57:51,780 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=295, Invalid=1867, Unknown=0, NotChecked=0, Total=2162 [2018-04-13 07:57:51,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2018-04-13 07:57:51,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 304. [2018-04-13 07:57:51,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2018-04-13 07:57:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 343 transitions. [2018-04-13 07:57:51,783 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 343 transitions. Word has length 68 [2018-04-13 07:57:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:51,783 INFO L459 AbstractCegarLoop]: Abstraction has 304 states and 343 transitions. [2018-04-13 07:57:51,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-13 07:57:51,783 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 343 transitions. [2018-04-13 07:57:51,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-13 07:57:51,784 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:51,784 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-13 07:57:51,784 INFO L408 AbstractCegarLoop]: === Iteration 87 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:51,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1637620366, now seen corresponding path program 7 times [2018-04-13 07:57:51,784 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:51,784 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:51,785 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:51,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:51,785 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:51,797 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:51,800 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:51,800 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:51,800 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:51,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:51,818 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:51,819 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:51,820 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:51,823 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,826 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:57:51,842 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,842 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 [2018-04-13 07:57:51,843 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,849 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,849 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-04-13 07:57:51,850 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,854 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-13 07:57:51,869 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 [2018-04-13 07:57:51,870 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 [2018-04-13 07:57:51,870 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,872 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,877 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,878 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:38 [2018-04-13 07:57:51,922 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,922 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,923 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 [2018-04-13 07:57:51,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,934 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,935 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,935 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,936 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,936 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 42 [2018-04-13 07:57:51,936 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,947 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:65 [2018-04-13 07:57:51,988 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,989 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:51,990 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 47 treesize of output 59 [2018-04-13 07:57:51,991 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 [2018-04-13 07:57:51,991 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:51,997 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,009 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:90, output treesize:84 [2018-04-13 07:57:52,095 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,095 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,096 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,096 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,097 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 47 treesize of output 112 [2018-04-13 07:57:52,097 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,116 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,116 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,117 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,117 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,118 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,118 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 35 treesize of output 74 [2018-04-13 07:57:52,119 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:52,131 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:129, output treesize:120 [2018-04-13 07:57:52,175 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,175 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,176 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,178 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,180 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 116 treesize of output 128 [2018-04-13 07:57:52,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:52,182 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,193 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:52,207 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:138, output treesize:139 [2018-04-13 07:57:52,296 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,300 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,325 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 223 treesize of output 169 [2018-04-13 07:57:52,327 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-04-13 07:57:52,327 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,342 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,357 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. [2018-04-13 07:57:52,357 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:231, output treesize:211 [2018-04-13 07:57:52,622 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,623 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:52,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 137 [2018-04-13 07:57:52,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,650 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,658 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:52,659 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:52,663 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 162 treesize of output 112 [2018-04-13 07:57:52,665 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:52,669 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 42 [2018-04-13 07:57:52,669 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,676 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 [2018-04-13 07:57:52,676 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,681 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:52,681 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 [2018-04-13 07:57:52,681 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,685 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 [2018-04-13 07:57:52,685 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,687 INFO L267 ElimStorePlain]: Start of recursive call 3: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:52,693 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. [2018-04-13 07:57:52,693 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:252, output treesize:5 [2018-04-13 07:57:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:52,761 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:52,761 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-13 07:57:52,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-13 07:57:52,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-13 07:57:52,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2018-04-13 07:57:52,762 INFO L87 Difference]: Start difference. First operand 304 states and 343 transitions. Second operand 29 states. [2018-04-13 07:57:55,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:57:55,187 INFO L93 Difference]: Finished difference Result 397 states and 441 transitions. [2018-04-13 07:57:55,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-13 07:57:55,187 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 69 [2018-04-13 07:57:55,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:57:55,188 INFO L225 Difference]: With dead ends: 397 [2018-04-13 07:57:55,188 INFO L226 Difference]: Without dead ends: 397 [2018-04-13 07:57:55,188 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=421, Invalid=3119, Unknown=0, NotChecked=0, Total=3540 [2018-04-13 07:57:55,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2018-04-13 07:57:55,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 309. [2018-04-13 07:57:55,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-04-13 07:57:55,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 349 transitions. [2018-04-13 07:57:55,190 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 349 transitions. Word has length 69 [2018-04-13 07:57:55,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:57:55,190 INFO L459 AbstractCegarLoop]: Abstraction has 309 states and 349 transitions. [2018-04-13 07:57:55,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-13 07:57:55,190 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 349 transitions. [2018-04-13 07:57:55,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-13 07:57:55,191 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:57:55,191 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-13 07:57:55,191 INFO L408 AbstractCegarLoop]: === Iteration 88 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:57:55,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1637620367, now seen corresponding path program 5 times [2018-04-13 07:57:55,191 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:57:55,191 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:57:55,191 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:55,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 07:57:55,191 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:57:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:57:55,198 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:57:55,200 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:57:55,200 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:57:55,200 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:57:55,203 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-13 07:57:55,222 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-04-13 07:57:55,222 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:57:55,225 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:57:55,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:57:55,261 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,271 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,271 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:57:55,272 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,280 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-04-13 07:57:55,329 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 [2018-04-13 07:57:55,331 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 [2018-04-13 07:57:55,331 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,332 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,340 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,340 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:47 [2018-04-13 07:57:55,393 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,393 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 [2018-04-13 07:57:55,393 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,409 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,410 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,410 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,411 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 [2018-04-13 07:57:55,411 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,425 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,425 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:73, output treesize:80 [2018-04-13 07:57:55,471 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,473 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 [2018-04-13 07:57:55,475 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 [2018-04-13 07:57:55,475 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,482 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,504 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 [2018-04-13 07:57:55,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:55,505 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,507 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,520 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,521 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:115, output treesize:107 [2018-04-13 07:57:55,622 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,623 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,624 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,624 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,625 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,625 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 [2018-04-13 07:57:55,625 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,646 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 [2018-04-13 07:57:55,646 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,662 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:55,663 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:166, output treesize:157 [2018-04-13 07:57:55,724 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,725 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,725 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,728 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,728 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,729 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,729 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 [2018-04-13 07:57:55,731 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:57:55,732 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,752 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,771 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,773 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 [2018-04-13 07:57:55,775 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:55,775 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,779 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:55,796 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:187, output treesize:168 [2018-04-13 07:57:55,913 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,914 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,915 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,916 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,917 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,921 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,923 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 302 treesize of output 254 [2018-04-13 07:57:55,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:55,925 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,973 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:55,977 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 149 [2018-04-13 07:57:55,979 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:57:55,979 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:55,985 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:56,005 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. [2018-04-13 07:57:56,006 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:311, output treesize:267 [2018-04-13 07:57:56,206 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:56,206 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:56,207 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:56,208 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:56,209 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:56,211 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:56,212 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 267 treesize of output 202 [2018-04-13 07:57:56,225 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 61 treesize of output 73 [2018-04-13 07:57:56,228 INFO L267 ElimStorePlain]: Start of recursive call 3: 17 dim-0 vars, End of recursive call: 17 dim-0 vars, and 7 xjuncts. [2018-04-13 07:57:56,307 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 [2018-04-13 07:57:56,307 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:56,380 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 114 treesize of output 104 [2018-04-13 07:57:56,381 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:56,385 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 1 case distinctions, treesize of input 112 treesize of output 102 [2018-04-13 07:57:56,386 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:56,388 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:56,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 100 [2018-04-13 07:57:56,390 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:56,391 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 96 treesize of output 80 [2018-04-13 07:57:56,391 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:56,393 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 102 treesize of output 86 [2018-04-13 07:57:56,393 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:57:56,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 92 [2018-04-13 07:57:56,400 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:56,406 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 108 treesize of output 98 [2018-04-13 07:57:56,407 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:57:56,704 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,709 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 2 case distinctions, treesize of input 134 treesize of output 118 [2018-04-13 07:57:56,709 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:56,712 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,716 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 2 case distinctions, treesize of input 138 treesize of output 122 [2018-04-13 07:57:56,717 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:56,718 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 108 [2018-04-13 07:57:56,719 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:56,720 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 104 [2018-04-13 07:57:56,721 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:56,723 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,728 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 2 case distinctions, treesize of input 140 treesize of output 124 [2018-04-13 07:57:56,728 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:56,730 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,731 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:56,732 INFO L477 Elim1Store]: Elim1 did not use 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 120 [2018-04-13 07:57:56,733 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:56,735 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,739 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 2 case distinctions, treesize of input 134 treesize of output 118 [2018-04-13 07:57:56,740 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:56,741 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,742 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:57:56,743 INFO L477 Elim1Store]: Elim1 did not use 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 124 [2018-04-13 07:57:56,744 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:56,745 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 104 [2018-04-13 07:57:56,746 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:56,748 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,752 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 2 case distinctions, treesize of input 138 treesize of output 122 [2018-04-13 07:57:56,753 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:56,755 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:56,760 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 2 case distinctions, treesize of input 142 treesize of output 126 [2018-04-13 07:57:56,760 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-04-13 07:57:57,294 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 22 dim-0 vars, and 11 xjuncts. [2018-04-13 07:57:57,610 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 97 treesize of output 89 [2018-04-13 07:57:57,611 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 [2018-04-13 07:57:57,611 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,627 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:57,628 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 [2018-04-13 07:57:57,628 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,641 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 [2018-04-13 07:57:57,642 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,653 INFO L267 ElimStorePlain]: Start of recursive call 23: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,656 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 97 treesize of output 89 [2018-04-13 07:57:57,657 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:57,657 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 [2018-04-13 07:57:57,657 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,673 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 [2018-04-13 07:57:57,673 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,687 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 [2018-04-13 07:57:57,687 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,699 INFO L267 ElimStorePlain]: Start of recursive call 27: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,702 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 97 treesize of output 89 [2018-04-13 07:57:57,704 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 [2018-04-13 07:57:57,704 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,720 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:57,720 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 [2018-04-13 07:57:57,720 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,734 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 [2018-04-13 07:57:57,734 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,744 INFO L267 ElimStorePlain]: Start of recursive call 31: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,747 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 97 treesize of output 89 [2018-04-13 07:57:57,749 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 [2018-04-13 07:57:57,749 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,765 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:57,765 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 [2018-04-13 07:57:57,766 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,779 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 [2018-04-13 07:57:57,779 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,790 INFO L267 ElimStorePlain]: Start of recursive call 35: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,793 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 97 treesize of output 89 [2018-04-13 07:57:57,795 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:57,795 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 [2018-04-13 07:57:57,795 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,811 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 [2018-04-13 07:57:57,811 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,824 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 [2018-04-13 07:57:57,824 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,834 INFO L267 ElimStorePlain]: Start of recursive call 39: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,837 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 97 treesize of output 89 [2018-04-13 07:57:57,839 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 [2018-04-13 07:57:57,839 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,858 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:57,858 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 [2018-04-13 07:57:57,859 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,876 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 [2018-04-13 07:57:57,876 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,887 INFO L267 ElimStorePlain]: Start of recursive call 43: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,890 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 97 treesize of output 89 [2018-04-13 07:57:57,891 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:57,892 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 [2018-04-13 07:57:57,892 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,907 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 [2018-04-13 07:57:57,907 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,921 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 7 treesize of output 1 [2018-04-13 07:57:57,921 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,932 INFO L267 ElimStorePlain]: Start of recursive call 47: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,935 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 97 treesize of output 89 [2018-04-13 07:57:57,937 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 [2018-04-13 07:57:57,937 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,953 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:57,953 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 [2018-04-13 07:57:57,953 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,967 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-04-13 07:57:57,967 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,978 INFO L267 ElimStorePlain]: Start of recursive call 51: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:57,981 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 97 treesize of output 89 [2018-04-13 07:57:57,983 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:57,983 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 [2018-04-13 07:57:57,984 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,001 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 7 treesize of output 1 [2018-04-13 07:57:58,001 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:57:58,014 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,025 INFO L267 ElimStorePlain]: Start of recursive call 55: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,028 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 97 treesize of output 89 [2018-04-13 07:57:58,030 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:58,030 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 [2018-04-13 07:57:58,031 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,046 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 [2018-04-13 07:57:58,046 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,065 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 [2018-04-13 07:57:58,065 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,076 INFO L267 ElimStorePlain]: Start of recursive call 59: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,079 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 97 treesize of output 89 [2018-04-13 07:57:58,081 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:57:58,081 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 [2018-04-13 07:57:58,081 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,098 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 [2018-04-13 07:57:58,098 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,112 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 [2018-04-13 07:57:58,112 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,123 INFO L267 ElimStorePlain]: Start of recursive call 63: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:57:58,319 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 22 dim-0 vars, and 11 xjuncts. [2018-04-13 07:57:58,319 INFO L202 ElimStorePlain]: Needed 66 recursive calls to eliminate 7 variables, input treesize:276, output treesize:452 [2018-04-13 07:57:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:57:58,460 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:57:58,460 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-13 07:57:58,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-13 07:57:58,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-13 07:57:58,460 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2018-04-13 07:57:58,460 INFO L87 Difference]: Start difference. First operand 309 states and 349 transitions. Second operand 30 states. [2018-04-13 07:58:01,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:58:01,105 INFO L93 Difference]: Finished difference Result 409 states and 453 transitions. [2018-04-13 07:58:01,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-13 07:58:01,105 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 69 [2018-04-13 07:58:01,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:58:01,106 INFO L225 Difference]: With dead ends: 409 [2018-04-13 07:58:01,106 INFO L226 Difference]: Without dead ends: 409 [2018-04-13 07:58:01,106 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=409, Invalid=3131, Unknown=0, NotChecked=0, Total=3540 [2018-04-13 07:58:01,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2018-04-13 07:58:01,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 309. [2018-04-13 07:58:01,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-04-13 07:58:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 349 transitions. [2018-04-13 07:58:01,108 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 349 transitions. Word has length 69 [2018-04-13 07:58:01,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:58:01,108 INFO L459 AbstractCegarLoop]: Abstraction has 309 states and 349 transitions. [2018-04-13 07:58:01,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-13 07:58:01,109 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 349 transitions. [2018-04-13 07:58:01,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-13 07:58:01,109 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:58:01,109 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-13 07:58:01,109 INFO L408 AbstractCegarLoop]: === Iteration 89 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:58:01,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1634924587, now seen corresponding path program 3 times [2018-04-13 07:58:01,109 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:58:01,109 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:58:01,110 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:01,110 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:58:01,110 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:58:01,115 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:58:01,117 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:58:01,117 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:58:01,117 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:58:01,118 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:58:01,145 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-13 07:58:01,145 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:58:01,147 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:58:01,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:58:01,149 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,151 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:58:01,151 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,153 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:58:01,171 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,171 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 [2018-04-13 07:58:01,171 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,178 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,178 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:58:01,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-13 07:58:01,201 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 [2018-04-13 07:58:01,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:01,202 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,204 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:58:01,214 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 [2018-04-13 07:58:01,214 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,216 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,223 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,224 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:59, output treesize:54 [2018-04-13 07:58:01,238 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 [2018-04-13 07:58:01,239 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 [2018-04-13 07:58:01,239 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,240 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:01,247 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:69, output treesize:54 [2018-04-13 07:58:01,289 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,289 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,290 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 [2018-04-13 07:58:01,290 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,304 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,304 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,305 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,305 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,306 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 [2018-04-13 07:58:01,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:01,321 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:83 [2018-04-13 07:58:01,384 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,385 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,386 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 [2018-04-13 07:58:01,387 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 [2018-04-13 07:58:01,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,394 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,407 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:01,407 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:101, output treesize:91 [2018-04-13 07:58:01,693 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,694 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,695 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,695 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,696 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 45 treesize of output 116 [2018-04-13 07:58:01,696 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,717 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,718 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,719 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,719 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,720 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,720 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 37 treesize of output 73 [2018-04-13 07:58:01,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,735 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:01,735 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:134, output treesize:125 [2018-04-13 07:58:01,783 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,784 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,784 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,787 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 119 [2018-04-13 07:58:01,791 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 [2018-04-13 07:58:01,791 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,808 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,833 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 20 [2018-04-13 07:58:01,836 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 20 treesize of output 19 [2018-04-13 07:58:01,836 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,838 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:01,862 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:153, output treesize:170 [2018-04-13 07:58:01,895 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 [2018-04-13 07:58:01,896 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 [2018-04-13 07:58:01,907 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,909 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:01,926 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. [2018-04-13 07:58:01,926 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:245, output treesize:210 [2018-04-13 07:58:01,986 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,991 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:01,993 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 216 treesize of output 154 [2018-04-13 07:58:02,003 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 24 treesize of output 23 [2018-04-13 07:58:02,003 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:02,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:02,033 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. [2018-04-13 07:58:02,033 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:231, output treesize:211 [2018-04-13 07:58:02,277 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:02,278 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:02,279 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:02,279 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:02,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 155 [2018-04-13 07:58:02,280 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:02,303 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:02,304 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:02,304 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:02,305 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:02,306 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:02,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 138 [2018-04-13 07:58:02,312 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:02,316 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 42 [2018-04-13 07:58:02,317 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:02,325 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 11 [2018-04-13 07:58:02,325 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:02,329 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:02,329 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 21 treesize of output 15 [2018-04-13 07:58:02,329 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:02,332 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:02,338 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:02,338 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:252, output treesize:5 [2018-04-13 07:58:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:58:02,406 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:58:02,406 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-04-13 07:58:02,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-13 07:58:02,406 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-13 07:58:02,406 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=781, Unknown=0, NotChecked=0, Total=870 [2018-04-13 07:58:02,407 INFO L87 Difference]: Start difference. First operand 309 states and 349 transitions. Second operand 30 states. [2018-04-13 07:58:04,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:58:04,983 INFO L93 Difference]: Finished difference Result 407 states and 452 transitions. [2018-04-13 07:58:04,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-13 07:58:04,983 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 69 [2018-04-13 07:58:04,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:58:04,984 INFO L225 Difference]: With dead ends: 407 [2018-04-13 07:58:04,984 INFO L226 Difference]: Without dead ends: 407 [2018-04-13 07:58:04,985 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=459, Invalid=3323, Unknown=0, NotChecked=0, Total=3782 [2018-04-13 07:58:04,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2018-04-13 07:58:04,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 314. [2018-04-13 07:58:04,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2018-04-13 07:58:04,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 355 transitions. [2018-04-13 07:58:04,988 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 355 transitions. Word has length 69 [2018-04-13 07:58:04,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:58:04,988 INFO L459 AbstractCegarLoop]: Abstraction has 314 states and 355 transitions. [2018-04-13 07:58:04,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-13 07:58:04,988 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 355 transitions. [2018-04-13 07:58:04,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-13 07:58:04,988 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:58:04,989 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-13 07:58:04,989 INFO L408 AbstractCegarLoop]: === Iteration 90 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:58:04,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1634924586, now seen corresponding path program 2 times [2018-04-13 07:58:04,989 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:58:04,989 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:58:04,989 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:04,989 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:58:04,989 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:58:04,997 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:58:04,999 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:58:04,999 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:58:04,999 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:58:05,000 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:58:05,022 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:58:05,022 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:58:05,024 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:58:05,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:58:05,026 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,027 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,027 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-13 07:58:05,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:58:05,030 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,034 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,034 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-13 07:58:05,034 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,038 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:16 [2018-04-13 07:58:05,064 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,065 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,065 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,066 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,067 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 45 [2018-04-13 07:58:05,067 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,078 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 [2018-04-13 07:58:05,078 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,086 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:46, output treesize:39 [2018-04-13 07:58:05,114 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 [2018-04-13 07:58:05,116 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:05,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,117 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,135 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 [2018-04-13 07:58:05,136 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 [2018-04-13 07:58:05,136 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,137 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,149 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,149 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:72, output treesize:70 [2018-04-13 07:58:05,225 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,225 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,226 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 [2018-04-13 07:58:05,226 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,248 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,249 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,249 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,250 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,250 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,251 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 98 [2018-04-13 07:58:05,252 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:05,280 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:103, output treesize:106 [2018-04-13 07:58:05,333 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,336 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 [2018-04-13 07:58:05,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:05,337 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,341 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,366 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,368 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,368 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 80 treesize of output 92 [2018-04-13 07:58:05,370 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 [2018-04-13 07:58:05,370 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,379 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:05,399 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:141, output treesize:139 [2018-04-13 07:58:05,517 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,518 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,519 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,519 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 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 [2018-04-13 07:58:05,520 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,550 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,551 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,551 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,552 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,552 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,553 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,553 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,554 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 174 [2018-04-13 07:58:05,555 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,588 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. [2018-04-13 07:58:05,588 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:199, output treesize:218 [2018-04-13 07:58:05,666 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,667 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,667 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,672 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 38 treesize of output 71 [2018-04-13 07:58:05,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:05,674 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,714 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,714 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,715 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,717 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,719 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 198 treesize of output 194 [2018-04-13 07:58:05,721 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 [2018-04-13 07:58:05,721 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,741 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,770 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:05,770 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:241, output treesize:266 [2018-04-13 07:58:05,909 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,914 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,915 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,918 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,918 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 408 treesize of output 328 [2018-04-13 07:58:05,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 104 [2018-04-13 07:58:05,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,954 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:05,989 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,990 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,990 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:05,999 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 158 treesize of output 269 [2018-04-13 07:58:06,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:06,001 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,013 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,045 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. [2018-04-13 07:58:06,046 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:445, output treesize:351 [2018-04-13 07:58:06,487 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:06,488 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,488 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,489 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,490 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,490 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,491 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,491 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,492 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 170 [2018-04-13 07:58:06,493 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,541 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:06,541 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:387, output treesize:367 [2018-04-13 07:58:06,605 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,606 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,607 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,608 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,609 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,611 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:06,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 242 [2018-04-13 07:58:06,614 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 73 treesize of output 49 [2018-04-13 07:58:06,615 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:06,649 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 83 treesize of output 51 [2018-04-13 07:58:06,649 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:06,678 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:06,679 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 66 [2018-04-13 07:58:06,679 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,705 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 [2018-04-13 07:58:06,706 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,728 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:06,772 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 71 [2018-04-13 07:58:06,774 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 5 [2018-04-13 07:58:06,774 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,786 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:06,786 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 [2018-04-13 07:58:06,787 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,793 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:06,793 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 [2018-04-13 07:58:06,793 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,798 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 [2018-04-13 07:58:06,798 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,801 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:06,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:06,833 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 8 variables, input treesize:394, output treesize:74 [2018-04-13 07:58:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:58:06,949 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:58:06,949 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-13 07:58:06,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-13 07:58:06,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-13 07:58:06,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2018-04-13 07:58:06,949 INFO L87 Difference]: Start difference. First operand 314 states and 355 transitions. Second operand 31 states. [2018-04-13 07:58:39,805 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 180 DAG size of output 143 [2018-04-13 07:58:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:58:48,609 INFO L93 Difference]: Finished difference Result 389 states and 435 transitions. [2018-04-13 07:58:48,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-13 07:58:48,609 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 69 [2018-04-13 07:58:48,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:58:48,610 INFO L225 Difference]: With dead ends: 389 [2018-04-13 07:58:48,610 INFO L226 Difference]: Without dead ends: 389 [2018-04-13 07:58:48,610 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=478, Invalid=3177, Unknown=5, NotChecked=0, Total=3660 [2018-04-13 07:58:48,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-04-13 07:58:48,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 309. [2018-04-13 07:58:48,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-04-13 07:58:48,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 349 transitions. [2018-04-13 07:58:48,612 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 349 transitions. Word has length 69 [2018-04-13 07:58:48,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:58:48,613 INFO L459 AbstractCegarLoop]: Abstraction has 309 states and 349 transitions. [2018-04-13 07:58:48,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-13 07:58:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 349 transitions. [2018-04-13 07:58:48,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-13 07:58:48,613 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:58:48,613 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-13 07:58:48,613 INFO L408 AbstractCegarLoop]: === Iteration 91 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:58:48,613 INFO L82 PathProgramCache]: Analyzing trace with hash 458570027, now seen corresponding path program 4 times [2018-04-13 07:58:48,613 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:58:48,613 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:58:48,614 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:48,614 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:58:48,614 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:58:48,619 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:58:48,620 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:58:48,621 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:58:48,621 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:58:48,621 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 07:58:48,639 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 07:58:48,639 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:58:48,642 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:58:48,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:58:48,644 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:58:48,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,651 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,651 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:58:48,674 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:48,675 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:48,675 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 [2018-04-13 07:58:48,675 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,682 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 [2018-04-13 07:58:48,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,689 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-13 07:58:48,718 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 [2018-04-13 07:58:48,720 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 [2018-04-13 07:58:48,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,721 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,732 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 [2018-04-13 07:58:48,733 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 [2018-04-13 07:58:48,733 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,735 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,744 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:67, output treesize:65 [2018-04-13 07:58:48,760 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 [2018-04-13 07:58:48,761 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 [2018-04-13 07:58:48,761 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,762 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,770 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:48,770 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:80, output treesize:65 [2018-04-13 07:58:48,794 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 [2018-04-13 07:58:48,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:48,796 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,797 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:48,808 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:84, output treesize:81 [2018-04-13 07:58:48,824 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:48,824 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:48,825 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:48,825 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 [2018-04-13 07:58:48,826 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,842 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 [2018-04-13 07:58:48,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,857 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:48,857 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:98, output treesize:105 [2018-04-13 07:58:48,907 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:48,909 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:48,909 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 78 treesize of output 90 [2018-04-13 07:58:48,911 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 [2018-04-13 07:58:48,911 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,918 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:48,933 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:48,933 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:123, output treesize:113 [2018-04-13 07:58:49,014 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,016 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 25 treesize of output 44 [2018-04-13 07:58:49,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:49,018 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,021 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,038 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. [2018-04-13 07:58:49,038 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:160, output treesize:168 [2018-04-13 07:58:49,067 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,068 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,068 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,069 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,069 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,070 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 [2018-04-13 07:58:49,070 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,091 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,091 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 47 treesize of output 124 [2018-04-13 07:58:49,091 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,109 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. [2018-04-13 07:58:49,109 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:179, output treesize:170 [2018-04-13 07:58:49,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,160 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,162 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,164 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 153 treesize of output 155 [2018-04-13 07:58:49,166 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 [2018-04-13 07:58:49,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,199 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:49,199 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:183, output treesize:182 [2018-04-13 07:58:49,299 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,300 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,304 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 107 [2018-04-13 07:58:49,306 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 26 treesize of output 25 [2018-04-13 07:58:49,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,312 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,334 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. [2018-04-13 07:58:49,334 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:259, output treesize:273 [2018-04-13 07:58:49,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,380 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,384 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 280 treesize of output 196 [2018-04-13 07:58:49,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:49,387 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,404 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,426 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. [2018-04-13 07:58:49,427 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:301, output treesize:279 [2018-04-13 07:58:49,556 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,559 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:49,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 160 [2018-04-13 07:58:49,563 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 [2018-04-13 07:58:49,563 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,580 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:49,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 40 [2018-04-13 07:58:49,580 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,595 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 49 treesize of output 29 [2018-04-13 07:58:49,595 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:49,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2018-04-13 07:58:49,609 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:49,620 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:49,640 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. [2018-04-13 07:58:49,640 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:298, output treesize:77 [2018-04-13 07:58:49,768 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 29 treesize of output 33 [2018-04-13 07:58:49,770 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 [2018-04-13 07:58:49,770 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,776 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 [2018-04-13 07:58:49,776 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:49,782 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 [2018-04-13 07:58:49,782 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-13 07:58:49,784 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:58:49,799 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 2 xjuncts. [2018-04-13 07:58:49,799 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:87, output treesize:109 [2018-04-13 07:58:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:58:49,949 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:58:49,950 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-13 07:58:49,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-13 07:58:49,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-13 07:58:49,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2018-04-13 07:58:49,950 INFO L87 Difference]: Start difference. First operand 309 states and 349 transitions. Second operand 32 states. [2018-04-13 07:58:52,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:58:52,960 INFO L93 Difference]: Finished difference Result 436 states and 488 transitions. [2018-04-13 07:58:52,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-13 07:58:52,961 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 69 [2018-04-13 07:58:52,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:58:52,961 INFO L225 Difference]: With dead ends: 436 [2018-04-13 07:58:52,961 INFO L226 Difference]: Without dead ends: 435 [2018-04-13 07:58:52,962 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 976 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=418, Invalid=3488, Unknown=0, NotChecked=0, Total=3906 [2018-04-13 07:58:52,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2018-04-13 07:58:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 324. [2018-04-13 07:58:52,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-04-13 07:58:52,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 368 transitions. [2018-04-13 07:58:52,964 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 368 transitions. Word has length 69 [2018-04-13 07:58:52,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:58:52,964 INFO L459 AbstractCegarLoop]: Abstraction has 324 states and 368 transitions. [2018-04-13 07:58:52,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-13 07:58:52,964 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 368 transitions. [2018-04-13 07:58:52,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-13 07:58:52,964 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:58:52,964 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-13 07:58:52,965 INFO L408 AbstractCegarLoop]: === Iteration 92 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:58:52,965 INFO L82 PathProgramCache]: Analyzing trace with hash -788627051, now seen corresponding path program 4 times [2018-04-13 07:58:52,965 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:58:52,965 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:58:52,965 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:52,965 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:58:52,965 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:58:52,970 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:58:52,972 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:58:52,972 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:58:52,972 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:58:52,972 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 07:58:52,990 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 07:58:52,991 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:58:52,993 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:58:52,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:58:52,995 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:52,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:52,997 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:58:53,012 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,013 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,013 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 [2018-04-13 07:58:53,013 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,019 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-04-13 07:58:53,039 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 [2018-04-13 07:58:53,040 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 [2018-04-13 07:58:53,040 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,042 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,060 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 [2018-04-13 07:58:53,061 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 10 treesize of output 9 [2018-04-13 07:58:53,062 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,063 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,071 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:53, output treesize:45 [2018-04-13 07:58:53,118 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 [2018-04-13 07:58:53,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:53,120 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,121 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,131 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:76, output treesize:73 [2018-04-13 07:58:53,151 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,152 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,152 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,153 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 [2018-04-13 07:58:53,153 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,168 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:92 [2018-04-13 07:58:53,216 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,218 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 67 treesize of output 68 [2018-04-13 07:58:53,220 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 [2018-04-13 07:58:53,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,228 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,247 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,249 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 [2018-04-13 07:58:53,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:53,251 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,256 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,272 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,272 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:123, output treesize:104 [2018-04-13 07:58:53,345 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,347 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 44 [2018-04-13 07:58:53,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:53,349 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,353 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:53,367 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:145, output treesize:153 [2018-04-13 07:58:53,393 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,394 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,394 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,395 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,395 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 [2018-04-13 07:58:53,395 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,411 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:53,411 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:158, output treesize:150 [2018-04-13 07:58:53,459 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,459 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,464 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 [2018-04-13 07:58:53,466 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 [2018-04-13 07:58:53,466 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,478 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,500 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,503 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 45 [2018-04-13 07:58:53,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:53,505 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,510 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,527 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. [2018-04-13 07:58:53,527 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:176, output treesize:156 [2018-04-13 07:58:53,624 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,625 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,630 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 44 treesize of output 107 [2018-04-13 07:58:53,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-04-13 07:58:53,632 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,638 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,654 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. [2018-04-13 07:58:53,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:221, output treesize:235 [2018-04-13 07:58:53,699 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 68 treesize of output 69 [2018-04-13 07:58:53,701 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 28 treesize of output 27 [2018-04-13 07:58:53,701 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,706 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,739 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 266 treesize of output 170 [2018-04-13 07:58:53,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:58:53,741 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,756 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,777 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. [2018-04-13 07:58:53,777 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:312, output treesize:268 [2018-04-13 07:58:53,908 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:53,913 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 253 treesize of output 146 [2018-04-13 07:58:53,920 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2018-04-13 07:58:53,920 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 07:58:53,944 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 [2018-04-13 07:58:53,944 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:53,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 52 [2018-04-13 07:58:53,946 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:53,974 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:53,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 62 [2018-04-13 07:58:53,975 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:53,977 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:53,982 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 2 case distinctions, treesize of input 84 treesize of output 76 [2018-04-13 07:58:53,983 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 07:58:54,021 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 [2018-04-13 07:58:54,021 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,046 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:58:54,083 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 82 treesize of output 74 [2018-04-13 07:58:54,085 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:54,085 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 [2018-04-13 07:58:54,085 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,098 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 [2018-04-13 07:58:54,098 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,107 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,110 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 82 treesize of output 74 [2018-04-13 07:58:54,111 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:54,112 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 [2018-04-13 07:58:54,112 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,124 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 [2018-04-13 07:58:54,124 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,134 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,163 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 2 xjuncts. [2018-04-13 07:58:54,164 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 8 variables, input treesize:292, output treesize:87 [2018-04-13 07:58:54,293 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 [2018-04-13 07:58:54,294 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:54,294 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 [2018-04-13 07:58:54,294 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,300 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 5 treesize of output 1 [2018-04-13 07:58:54,300 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,302 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 [2018-04-13 07:58:54,302 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,303 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,309 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:54,309 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-04-13 07:58:54,357 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:58:54,357 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:58:54,358 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-04-13 07:58:54,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-13 07:58:54,358 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-13 07:58:54,358 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2018-04-13 07:58:54,358 INFO L87 Difference]: Start difference. First operand 324 states and 368 transitions. Second operand 30 states. [2018-04-13 07:58:55,651 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 99 DAG size of output 97 [2018-04-13 07:58:57,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:58:57,311 INFO L93 Difference]: Finished difference Result 452 states and 505 transitions. [2018-04-13 07:58:57,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-04-13 07:58:57,311 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 69 [2018-04-13 07:58:57,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:58:57,312 INFO L225 Difference]: With dead ends: 452 [2018-04-13 07:58:57,312 INFO L226 Difference]: Without dead ends: 452 [2018-04-13 07:58:57,312 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=384, Invalid=3156, Unknown=0, NotChecked=0, Total=3540 [2018-04-13 07:58:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2018-04-13 07:58:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 309. [2018-04-13 07:58:57,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-04-13 07:58:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 349 transitions. [2018-04-13 07:58:57,314 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 349 transitions. Word has length 69 [2018-04-13 07:58:57,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:58:57,314 INFO L459 AbstractCegarLoop]: Abstraction has 309 states and 349 transitions. [2018-04-13 07:58:57,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-13 07:58:57,314 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 349 transitions. [2018-04-13 07:58:57,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-13 07:58:57,315 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:58:57,315 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:58:57,315 INFO L408 AbstractCegarLoop]: === Iteration 93 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:58:57,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1746339697, now seen corresponding path program 3 times [2018-04-13 07:58:57,315 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:58:57,315 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:58:57,315 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:57,316 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:58:57,316 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:58:57,321 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:58:57,322 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:58:57,322 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:58:57,322 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:58:57,322 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:58:57,333 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-13 07:58:57,333 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:58:57,335 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:58:57,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:58:57,337 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,347 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,347 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:58:57,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:58:57,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:58:57,362 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,363 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,368 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,368 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:22 [2018-04-13 07:58:57,377 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,378 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,378 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:58:57,378 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,391 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:21 [2018-04-13 07:58:57,410 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 [2018-04-13 07:58:57,411 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 [2018-04-13 07:58:57,411 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,412 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,419 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,420 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:32 [2018-04-13 07:58:57,458 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,460 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 [2018-04-13 07:58:57,461 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 14 treesize of output 13 [2018-04-13 07:58:57,461 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,465 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,471 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,471 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:46, output treesize:48 [2018-04-13 07:58:57,488 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,489 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:58:57,489 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,500 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:57 [2018-04-13 07:58:57,540 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,543 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 [2018-04-13 07:58:57,545 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 [2018-04-13 07:58:57,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,550 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,558 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:70, output treesize:69 [2018-04-13 07:58:57,621 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,633 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 32 treesize of output 106 [2018-04-13 07:58:57,635 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 77 treesize of output 76 [2018-04-13 07:58:57,635 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:57,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:98, output treesize:106 [2018-04-13 07:58:57,693 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,693 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,694 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,694 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 28 treesize of output 37 [2018-04-13 07:58:57,695 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:57,704 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:111, output treesize:104 [2018-04-13 07:58:57,754 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:57,765 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 103 treesize of output 98 [2018-04-13 07:58:57,766 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 114 treesize of output 113 [2018-04-13 07:58:57,767 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,797 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 2 case distinctions, treesize of input 67 treesize of output 64 [2018-04-13 07:58:57,797 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:58:57,816 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:58:57,836 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. [2018-04-13 07:58:57,836 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:117, output treesize:168 [2018-04-13 07:58:57,875 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 87 treesize of output 64 [2018-04-13 07:58:57,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:58:57,876 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:57,883 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 [2018-04-13 07:58:57,883 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:57,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:57,912 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 146 treesize of output 98 [2018-04-13 07:58:57,913 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 88 treesize of output 72 [2018-04-13 07:58:57,914 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:57,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 60 [2018-04-13 07:58:57,937 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:57,958 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 76 treesize of output 57 [2018-04-13 07:58:57,959 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:58,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 45 [2018-04-13 07:58:58,005 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:58,026 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 57 treesize of output 49 [2018-04-13 07:58:58,027 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:58,045 INFO L267 ElimStorePlain]: Start of recursive call 5: 5 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:58:58,070 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. [2018-04-13 07:58:58,070 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 5 variables, input treesize:234, output treesize:125 [2018-04-13 07:58:58,157 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 [2018-04-13 07:58:58,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:58:58,158 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:58,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:58,188 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. [2018-04-13 07:58:58,189 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:41, output treesize:37 [2018-04-13 07:58:58,267 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 [2018-04-13 07:58:58,268 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:58:58,268 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 [2018-04-13 07:58:58,268 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:58,274 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 [2018-04-13 07:58:58,274 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:58,277 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 [2018-04-13 07:58:58,277 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:58,278 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:58,282 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:58,282 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:47, output treesize:3 [2018-04-13 07:58:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:58:58,320 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:58:58,320 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-13 07:58:58,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:58:58,320 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:58:58,320 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2018-04-13 07:58:58,321 INFO L87 Difference]: Start difference. First operand 309 states and 349 transitions. Second operand 27 states. [2018-04-13 07:58:59,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:58:59,666 INFO L93 Difference]: Finished difference Result 402 states and 447 transitions. [2018-04-13 07:58:59,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:58:59,666 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 71 [2018-04-13 07:58:59,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:58:59,667 INFO L225 Difference]: With dead ends: 402 [2018-04-13 07:58:59,667 INFO L226 Difference]: Without dead ends: 400 [2018-04-13 07:58:59,667 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=317, Invalid=2335, Unknown=0, NotChecked=0, Total=2652 [2018-04-13 07:58:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2018-04-13 07:58:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 309. [2018-04-13 07:58:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-04-13 07:58:59,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 348 transitions. [2018-04-13 07:58:59,669 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 348 transitions. Word has length 71 [2018-04-13 07:58:59,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:58:59,670 INFO L459 AbstractCegarLoop]: Abstraction has 309 states and 348 transitions. [2018-04-13 07:58:59,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:58:59,670 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 348 transitions. [2018-04-13 07:58:59,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-13 07:58:59,670 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:58:59,671 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:58:59,671 INFO L408 AbstractCegarLoop]: === Iteration 94 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:58:59,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1949967097, now seen corresponding path program 2 times [2018-04-13 07:58:59,671 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:58:59,671 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:58:59,671 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:59,672 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:58:59,672 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:58:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:58:59,677 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:58:59,678 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:58:59,678 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:58:59,678 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:58:59,678 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:58:59,688 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:58:59,688 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:58:59,690 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:58:59,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:58:59,692 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,695 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:58:59,706 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:59,707 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:59,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:58:59,707 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,710 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2018-04-13 07:58:59,730 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 [2018-04-13 07:58:59,731 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:58:59,732 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,733 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,738 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,738 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:32 [2018-04-13 07:58:59,769 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:59,769 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:59,769 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:58:59,769 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,776 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:38 [2018-04-13 07:58:59,803 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:59,806 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 37 treesize of output 38 [2018-04-13 07:58:59,807 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 [2018-04-13 07:58:59,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,812 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,818 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,818 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:50 [2018-04-13 07:58:59,887 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:59,887 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:59,888 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:59,888 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 26 treesize of output 33 [2018-04-13 07:58:59,889 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,894 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:58:59,894 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:69, output treesize:62 [2018-04-13 07:58:59,935 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:58:59,946 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 3 case distinctions, treesize of input 71 treesize of output 78 [2018-04-13 07:58:59,948 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 80 treesize of output 79 [2018-04-13 07:58:59,948 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:58:59,976 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 2 case distinctions, treesize of input 49 treesize of output 54 [2018-04-13 07:58:59,976 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:58:59,993 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:59:00,016 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. [2018-04-13 07:59:00,016 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:75, output treesize:119 [2018-04-13 07:59:00,123 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 [2018-04-13 07:59:00,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:59:00,124 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,128 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 126 treesize of output 99 [2018-04-13 07:59:00,167 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 87 [2018-04-13 07:59:00,168 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:00,185 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:00,216 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2018-04-13 07:59:00,216 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,235 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:00,257 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 8 dim-0 vars, and 3 xjuncts. [2018-04-13 07:59:00,257 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:209, output treesize:234 [2018-04-13 07:59:00,723 WARN L148 SmtUtils]: Spent 341ms on a formula simplification that was a NOOP. DAG size: 66 [2018-04-13 07:59:00,728 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 73 treesize of output 68 [2018-04-13 07:59:00,728 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,757 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 120 treesize of output 115 [2018-04-13 07:59:00,757 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,784 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 82 treesize of output 77 [2018-04-13 07:59:00,784 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,811 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 [2018-04-13 07:59:00,816 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 [2018-04-13 07:59:00,816 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:00,823 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 [2018-04-13 07:59:00,823 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,829 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 [2018-04-13 07:59:00,829 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,829 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 [2018-04-13 07:59:00,830 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,832 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:59:00,853 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:00,855 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 68 treesize of output 61 [2018-04-13 07:59:00,856 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 26 treesize of output 13 [2018-04-13 07:59:00,856 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,862 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 [2018-04-13 07:59:00,862 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,870 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 26 treesize of output 23 [2018-04-13 07:59:00,870 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:00,881 INFO L267 ElimStorePlain]: Start of recursive call 10: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:59:00,908 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 7 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 90 [2018-04-13 07:59:00,913 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 65 treesize of output 58 [2018-04-13 07:59:00,914 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:00,953 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 40 treesize of output 32 [2018-04-13 07:59:00,953 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,954 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 36 treesize of output 32 [2018-04-13 07:59:00,954 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:00,993 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 75 treesize of output 70 [2018-04-13 07:59:00,994 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:01,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 53 [2018-04-13 07:59:01,038 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:01,093 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 60 treesize of output 48 [2018-04-13 07:59:01,093 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:01,094 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 42 treesize of output 34 [2018-04-13 07:59:01,094 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:01,137 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 34 [2018-04-13 07:59:01,137 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:01,186 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 55 treesize of output 54 [2018-04-13 07:59:01,186 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:01,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 17 [2018-04-13 07:59:01,416 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:01,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 15 [2018-04-13 07:59:01,418 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:01,503 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 28 treesize of output 27 [2018-04-13 07:59:01,503 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:01,507 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 23 [2018-04-13 07:59:01,508 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:01,544 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 24 [2018-04-13 07:59:01,544 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:01,545 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 22 treesize of output 18 [2018-04-13 07:59:01,545 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:01,579 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 14 treesize of output 6 [2018-04-13 07:59:01,579 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:01,580 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 16 treesize of output 9 [2018-04-13 07:59:01,580 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:01,593 INFO L267 ElimStorePlain]: Start of recursive call 14: 12 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:59:01,603 INFO L267 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 3 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:59:01,603 INFO L202 ElimStorePlain]: Needed 31 recursive calls to eliminate 17 variables, input treesize:276, output treesize:11 [2018-04-13 07:59:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:59:01,675 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:59:01,675 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-04-13 07:59:01,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 07:59:01,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 07:59:01,675 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2018-04-13 07:59:01,675 INFO L87 Difference]: Start difference. First operand 309 states and 348 transitions. Second operand 25 states. [2018-04-13 07:59:02,915 WARN L151 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 128 DAG size of output 82 [2018-04-13 07:59:03,221 WARN L151 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 134 DAG size of output 85 [2018-04-13 07:59:03,996 WARN L148 SmtUtils]: Spent 648ms on a formula simplification that was a NOOP. DAG size: 108 [2018-04-13 07:59:04,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:59:04,248 INFO L93 Difference]: Finished difference Result 398 states and 443 transitions. [2018-04-13 07:59:04,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 07:59:04,248 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 71 [2018-04-13 07:59:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:59:04,248 INFO L225 Difference]: With dead ends: 398 [2018-04-13 07:59:04,248 INFO L226 Difference]: Without dead ends: 398 [2018-04-13 07:59:04,249 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=257, Invalid=1999, Unknown=0, NotChecked=0, Total=2256 [2018-04-13 07:59:04,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2018-04-13 07:59:04,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 333. [2018-04-13 07:59:04,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2018-04-13 07:59:04,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 379 transitions. [2018-04-13 07:59:04,251 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 379 transitions. Word has length 71 [2018-04-13 07:59:04,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:59:04,251 INFO L459 AbstractCegarLoop]: Abstraction has 333 states and 379 transitions. [2018-04-13 07:59:04,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 07:59:04,251 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 379 transitions. [2018-04-13 07:59:04,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-13 07:59:04,256 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:59:04,256 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:59:04,256 INFO L408 AbstractCegarLoop]: === Iteration 95 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:59:04,257 INFO L82 PathProgramCache]: Analyzing trace with hash -541370673, now seen corresponding path program 3 times [2018-04-13 07:59:04,257 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:59:04,257 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:59:04,257 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:59:04,257 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:59:04,257 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:59:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:59:04,262 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:59:04,264 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:59:04,264 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:59:04,264 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:59:04,264 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:59:04,276 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-04-13 07:59:04,276 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:59:04,278 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:59:04,283 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 6 treesize of output 5 [2018-04-13 07:59:04,284 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,286 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:59:04,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:59:04,300 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:59:04,301 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,302 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,307 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,307 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:31, output treesize:22 [2018-04-13 07:59:04,324 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,325 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:59:04,325 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,329 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,330 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:21 [2018-04-13 07:59:04,348 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 [2018-04-13 07:59:04,349 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 [2018-04-13 07:59:04,349 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,351 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,358 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,358 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:32 [2018-04-13 07:59:04,394 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,397 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 [2018-04-13 07:59:04,398 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:59:04,398 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,401 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,408 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,408 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:46, output treesize:48 [2018-04-13 07:59:04,425 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,426 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,426 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:59:04,426 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,436 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,436 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:57 [2018-04-13 07:59:04,476 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,479 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 [2018-04-13 07:59:04,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:59:04,481 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,486 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,497 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:70, output treesize:69 [2018-04-13 07:59:04,568 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,579 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 32 treesize of output 106 [2018-04-13 07:59:04,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 76 [2018-04-13 07:59:04,581 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,603 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,607 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 54 treesize of output 71 [2018-04-13 07:59:04,607 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:04,620 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:59:04,637 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 2 xjuncts. [2018-04-13 07:59:04,637 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:98, output treesize:221 [2018-04-13 07:59:04,703 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,705 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 114 treesize of output 130 [2018-04-13 07:59:04,705 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,741 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,742 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,742 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,743 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,743 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 106 treesize of output 122 [2018-04-13 07:59:04,744 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,769 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 2 xjuncts. [2018-04-13 07:59:04,769 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:221, output treesize:207 [2018-04-13 07:59:04,857 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:04,858 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,861 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 100 [2018-04-13 07:59:04,863 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 [2018-04-13 07:59:04,863 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,885 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,917 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:04,929 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 130 treesize of output 125 [2018-04-13 07:59:04,932 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 141 treesize of output 140 [2018-04-13 07:59:04,932 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:04,975 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,004 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 126 treesize of output 135 [2018-04-13 07:59:05,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:59:05,006 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,018 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,020 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 79 treesize of output 82 [2018-04-13 07:59:05,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:59:05,022 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,030 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,054 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:05,054 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:253, output treesize:222 [2018-04-13 07:59:05,102 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 188 treesize of output 124 [2018-04-13 07:59:05,104 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 114 treesize of output 90 [2018-04-13 07:59:05,105 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:05,132 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 90 treesize of output 75 [2018-04-13 07:59:05,133 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,157 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 75 treesize of output 63 [2018-04-13 07:59:05,158 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:05,182 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 102 treesize of output 94 [2018-04-13 07:59:05,183 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:05,206 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 94 treesize of output 67 [2018-04-13 07:59:05,207 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:05,230 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:05,274 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 63 treesize of output 59 [2018-04-13 07:59:05,276 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 [2018-04-13 07:59:05,276 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,284 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,287 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 67 treesize of output 63 [2018-04-13 07:59:05,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-04-13 07:59:05,292 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,303 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,337 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 117 treesize of output 90 [2018-04-13 07:59:05,339 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 58 treesize of output 38 [2018-04-13 07:59:05,339 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:05,348 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 [2018-04-13 07:59:05,349 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,356 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:05,387 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 48 treesize of output 44 [2018-04-13 07:59:05,388 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 [2018-04-13 07:59:05,388 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,394 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 10 dim-0 vars, and 3 xjuncts. [2018-04-13 07:59:05,422 INFO L202 ElimStorePlain]: Needed 16 recursive calls to eliminate 7 variables, input treesize:306, output treesize:134 [2018-04-13 07:59:05,492 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:05,492 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 44 [2018-04-13 07:59:05,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:59:05,494 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,499 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,505 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. [2018-04-13 07:59:05,505 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:41, output treesize:33 [2018-04-13 07:59:05,583 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:05,584 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:05,585 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 0 case distinctions, treesize of input 29 treesize of output 37 [2018-04-13 07:59:05,587 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:05,590 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 [2018-04-13 07:59:05,591 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:05,599 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 5 treesize of output 1 [2018-04-13 07:59:05,599 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,602 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 [2018-04-13 07:59:05,603 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,604 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:05,609 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:43, output treesize:3 [2018-04-13 07:59:05,644 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:59:05,644 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:59:05,644 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-13 07:59:05,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:59:05,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:59:05,645 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=627, Unknown=1, NotChecked=0, Total=702 [2018-04-13 07:59:05,645 INFO L87 Difference]: Start difference. First operand 333 states and 379 transitions. Second operand 27 states. [2018-04-13 07:59:06,663 WARN L151 SmtUtils]: Spent 125ms on a formula simplification. DAG size of input: 87 DAG size of output 87 [2018-04-13 07:59:07,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:59:07,558 INFO L93 Difference]: Finished difference Result 461 states and 518 transitions. [2018-04-13 07:59:07,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:59:07,559 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 71 [2018-04-13 07:59:07,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:59:07,559 INFO L225 Difference]: With dead ends: 461 [2018-04-13 07:59:07,559 INFO L226 Difference]: Without dead ends: 456 [2018-04-13 07:59:07,560 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=310, Invalid=2336, Unknown=6, NotChecked=0, Total=2652 [2018-04-13 07:59:07,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2018-04-13 07:59:07,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 343. [2018-04-13 07:59:07,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2018-04-13 07:59:07,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 391 transitions. [2018-04-13 07:59:07,562 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 391 transitions. Word has length 71 [2018-04-13 07:59:07,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:59:07,562 INFO L459 AbstractCegarLoop]: Abstraction has 343 states and 391 transitions. [2018-04-13 07:59:07,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:59:07,562 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 391 transitions. [2018-04-13 07:59:07,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-13 07:59:07,562 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:59:07,563 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2018-04-13 07:59:07,563 INFO L408 AbstractCegarLoop]: === Iteration 96 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:59:07,563 INFO L82 PathProgramCache]: Analyzing trace with hash 360944019, now seen corresponding path program 8 times [2018-04-13 07:59:07,563 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:59:07,563 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:59:07,563 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:59:07,563 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:59:07,563 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:59:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:59:07,569 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:59:07,572 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:59:07,572 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:59:07,572 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:59:07,572 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:59:07,601 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:59:07,601 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:59:07,603 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:59:07,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:59:07,610 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:59:07,613 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,615 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2018-04-13 07:59:07,638 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,638 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 [2018-04-13 07:59:07,639 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,648 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,649 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:59:07,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,664 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-04-13 07:59:07,696 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 [2018-04-13 07:59:07,698 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 [2018-04-13 07:59:07,698 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,708 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,709 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:56 [2018-04-13 07:59:07,765 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,766 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,766 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 [2018-04-13 07:59:07,766 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,782 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,782 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,783 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,783 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 [2018-04-13 07:59:07,783 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,798 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:07,798 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:85, output treesize:92 [2018-04-13 07:59:07,842 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 [2018-04-13 07:59:07,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:59:07,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,847 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,870 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,872 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:07,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2018-04-13 07:59:07,874 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 [2018-04-13 07:59:07,874 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,881 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:07,897 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:127, output treesize:119 [2018-04-13 07:59:07,978 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 [2018-04-13 07:59:07,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:59:07,980 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:07,981 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,001 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. [2018-04-13 07:59:08,002 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:190, output treesize:198 [2018-04-13 07:59:08,032 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,033 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,033 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,034 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,034 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,035 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 [2018-04-13 07:59:08,035 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,061 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,062 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 [2018-04-13 07:59:08,062 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,087 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. [2018-04-13 07:59:08,087 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:212, output treesize:203 [2018-04-13 07:59:08,144 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 63 [2018-04-13 07:59:08,149 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 22 treesize of output 21 [2018-04-13 07:59:08,149 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,153 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,182 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,183 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,183 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,189 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,189 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,190 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,190 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 204 treesize of output 222 [2018-04-13 07:59:08,193 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 [2018-04-13 07:59:08,193 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,223 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,247 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:08,247 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:226, output treesize:207 [2018-04-13 07:59:08,283 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,285 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 73 treesize of output 51 [2018-04-13 07:59:08,286 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 [2018-04-13 07:59:08,287 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,293 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 [2018-04-13 07:59:08,294 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,297 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,320 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. [2018-04-13 07:59:08,320 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:282, output treesize:216 [2018-04-13 07:59:08,402 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,404 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,405 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 31 treesize of output 83 [2018-04-13 07:59:08,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 64 [2018-04-13 07:59:08,407 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,412 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,437 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. [2018-04-13 07:59:08,437 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:230, output treesize:207 [2018-04-13 07:59:08,481 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,481 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,482 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,483 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,487 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,488 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,489 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,491 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 206 treesize of output 210 [2018-04-13 07:59:08,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-04-13 07:59:08,493 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,513 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,533 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. [2018-04-13 07:59:08,533 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:230, output treesize:208 [2018-04-13 07:59:08,664 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 9 treesize of output 7 [2018-04-13 07:59:08,666 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 7 treesize of output 1 [2018-04-13 07:59:08,666 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,667 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:08,690 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. [2018-04-13 07:59:08,691 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:236, output treesize:227 [2018-04-13 07:59:08,897 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,898 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,899 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,899 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:08,900 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,901 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,906 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,906 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,907 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:08,908 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 7 new quantified variables, introduced 0 case distinctions, treesize of input 212 treesize of output 200 [2018-04-13 07:59:08,912 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:08,925 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 68 treesize of output 80 [2018-04-13 07:59:08,927 INFO L267 ElimStorePlain]: Start of recursive call 3: 10 dim-0 vars, End of recursive call: 10 dim-0 vars, and 7 xjuncts. [2018-04-13 07:59:08,958 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 [2018-04-13 07:59:08,958 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:08,972 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:08,972 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 45 treesize of output 32 [2018-04-13 07:59:08,972 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:08,989 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:09,011 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:09,011 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:249, output treesize:71 [2018-04-13 07:59:09,109 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:09,110 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:09,110 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 6 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 [2018-04-13 07:59:09,120 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 34 [2018-04-13 07:59:09,121 INFO L267 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 7 xjuncts. [2018-04-13 07:59:09,132 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 [2018-04-13 07:59:09,132 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:09,135 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:59:09,153 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. [2018-04-13 07:59:09,153 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:81, output treesize:109 [2018-04-13 07:59:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:59:09,309 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:59:09,309 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-13 07:59:09,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-13 07:59:09,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-13 07:59:09,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1024, Unknown=0, NotChecked=0, Total=1122 [2018-04-13 07:59:09,309 INFO L87 Difference]: Start difference. First operand 343 states and 391 transitions. Second operand 34 states. [2018-04-13 07:59:11,676 WARN L151 SmtUtils]: Spent 159ms on a formula simplification. DAG size of input: 122 DAG size of output 118 [2018-04-13 07:59:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:59:14,435 INFO L93 Difference]: Finished difference Result 452 states and 506 transitions. [2018-04-13 07:59:14,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-13 07:59:14,435 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 71 [2018-04-13 07:59:14,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:59:14,435 INFO L225 Difference]: With dead ends: 452 [2018-04-13 07:59:14,435 INFO L226 Difference]: Without dead ends: 451 [2018-04-13 07:59:14,436 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=438, Invalid=3984, Unknown=0, NotChecked=0, Total=4422 [2018-04-13 07:59:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2018-04-13 07:59:14,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 353. [2018-04-13 07:59:14,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2018-04-13 07:59:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 402 transitions. [2018-04-13 07:59:14,438 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 402 transitions. Word has length 71 [2018-04-13 07:59:14,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:59:14,438 INFO L459 AbstractCegarLoop]: Abstraction has 353 states and 402 transitions. [2018-04-13 07:59:14,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-13 07:59:14,438 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 402 transitions. [2018-04-13 07:59:14,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-13 07:59:14,438 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:59:14,438 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 07:59:14,438 INFO L408 AbstractCegarLoop]: === Iteration 97 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:59:14,439 INFO L82 PathProgramCache]: Analyzing trace with hash -801887047, now seen corresponding path program 3 times [2018-04-13 07:59:14,439 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:59:14,439 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:59:14,439 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:59:14,439 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:59:14,439 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:59:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:59:14,444 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:59:14,445 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:59:14,446 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:59:14,446 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:59:14,446 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 07:59:14,465 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-13 07:59:14,465 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:59:14,468 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:59:14,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:59:14,478 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,482 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 07:59:14,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 07:59:14,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:59:14,498 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,499 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,504 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,505 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-04-13 07:59:14,515 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,516 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 07:59:14,516 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,522 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,522 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:24 [2018-04-13 07:59:14,544 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 [2018-04-13 07:59:14,545 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 [2018-04-13 07:59:14,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,546 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,554 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,554 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:35 [2018-04-13 07:59:14,596 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,598 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 [2018-04-13 07:59:14,599 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 14 treesize of output 13 [2018-04-13 07:59:14,599 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,603 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:14,612 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:54 [2018-04-13 07:59:14,628 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,629 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,629 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 [2018-04-13 07:59:14,629 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:14,641 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:63 [2018-04-13 07:59:14,681 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,683 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 [2018-04-13 07:59:14,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 07:59:14,685 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,691 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:14,704 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:76, output treesize:75 [2018-04-13 07:59:14,781 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,794 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 32 treesize of output 106 [2018-04-13 07:59:14,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 76 [2018-04-13 07:59:14,797 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,815 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,828 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. [2018-04-13 07:59:14,829 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:109, output treesize:112 [2018-04-13 07:59:14,856 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,857 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,857 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,858 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 28 treesize of output 37 [2018-04-13 07:59:14,858 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,870 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:14,870 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:117, output treesize:110 [2018-04-13 07:59:14,926 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:14,937 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 103 treesize of output 98 [2018-04-13 07:59:14,939 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 114 treesize of output 113 [2018-04-13 07:59:14,939 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:14,981 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 2 case distinctions, treesize of input 69 treesize of output 70 [2018-04-13 07:59:14,982 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:15,006 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 07:59:15,029 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 2 xjuncts. [2018-04-13 07:59:15,029 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:123, output treesize:186 [2018-04-13 07:59:15,071 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 93 treesize of output 70 [2018-04-13 07:59:15,072 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 [2018-04-13 07:59:15,073 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:15,080 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 [2018-04-13 07:59:15,081 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:15,087 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:15,114 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 152 treesize of output 104 [2018-04-13 07:59:15,116 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 94 treesize of output 78 [2018-04-13 07:59:15,117 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:15,146 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 78 treesize of output 63 [2018-04-13 07:59:15,147 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:15,174 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 82 treesize of output 74 [2018-04-13 07:59:15,174 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:15,201 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 74 treesize of output 55 [2018-04-13 07:59:15,201 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:15,227 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 63 treesize of output 51 [2018-04-13 07:59:15,228 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:15,252 INFO L267 ElimStorePlain]: Start of recursive call 5: 5 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:15,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 13 dim-0 vars, and 3 xjuncts. [2018-04-13 07:59:15,285 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:246, output treesize:143 [2018-04-13 07:59:15,520 WARN L151 SmtUtils]: Spent 200ms on a formula simplification. DAG size of input: 86 DAG size of output 29 [2018-04-13 07:59:15,560 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 [2018-04-13 07:59:15,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 07:59:15,573 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:15,578 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:15,586 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. [2018-04-13 07:59:15,586 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:47, output treesize:43 [2018-04-13 07:59:15,711 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 [2018-04-13 07:59:15,712 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 [2018-04-13 07:59:15,712 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:15,717 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:15,717 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 [2018-04-13 07:59:15,717 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:15,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 07:59:15,721 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:15,721 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:15,727 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:15,727 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:53, output treesize:3 [2018-04-13 07:59:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:59:15,767 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:59:15,767 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-04-13 07:59:15,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 07:59:15,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 07:59:15,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2018-04-13 07:59:15,768 INFO L87 Difference]: Start difference. First operand 353 states and 402 transitions. Second operand 27 states. [2018-04-13 07:59:17,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 07:59:17,637 INFO L93 Difference]: Finished difference Result 464 states and 519 transitions. [2018-04-13 07:59:17,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-04-13 07:59:17,637 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 71 [2018-04-13 07:59:17,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 07:59:17,637 INFO L225 Difference]: With dead ends: 464 [2018-04-13 07:59:17,638 INFO L226 Difference]: Without dead ends: 459 [2018-04-13 07:59:17,638 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=317, Invalid=2335, Unknown=0, NotChecked=0, Total=2652 [2018-04-13 07:59:17,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2018-04-13 07:59:17,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 353. [2018-04-13 07:59:17,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2018-04-13 07:59:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 401 transitions. [2018-04-13 07:59:17,640 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 401 transitions. Word has length 71 [2018-04-13 07:59:17,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 07:59:17,640 INFO L459 AbstractCegarLoop]: Abstraction has 353 states and 401 transitions. [2018-04-13 07:59:17,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 07:59:17,640 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 401 transitions. [2018-04-13 07:59:17,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-13 07:59:17,640 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 07:59:17,640 INFO L355 BasicCegarLoop]: trace histogram [4, 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] [2018-04-13 07:59:17,641 INFO L408 AbstractCegarLoop]: === Iteration 98 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 07:59:17,641 INFO L82 PathProgramCache]: Analyzing trace with hash 100427645, now seen corresponding path program 8 times [2018-04-13 07:59:17,641 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 07:59:17,641 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 07:59:17,641 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:59:17,641 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 07:59:17,641 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 07:59:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 07:59:17,647 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 07:59:17,650 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 07:59:17,650 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 07:59:17,650 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 07:59:17,650 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 07:59:17,674 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 07:59:17,674 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 07:59:17,676 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 07:59:17,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:59:17,678 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 07:59:17,691 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,694 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 07:59:17,722 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,723 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 07:59:17,723 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,735 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 [2018-04-13 07:59:17,735 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,744 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-04-13 07:59:17,774 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 [2018-04-13 07:59:17,776 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 10 treesize of output 9 [2018-04-13 07:59:17,776 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,778 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,793 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 13 treesize of output 10 [2018-04-13 07:59:17,794 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 [2018-04-13 07:59:17,794 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,796 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,805 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:67, output treesize:68 [2018-04-13 07:59:17,858 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,858 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,859 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 [2018-04-13 07:59:17,859 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,879 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,880 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,880 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,881 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 [2018-04-13 07:59:17,881 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:17,899 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:103, output treesize:110 [2018-04-13 07:59:17,945 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,947 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 [2018-04-13 07:59:17,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 07:59:17,949 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,953 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,976 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,978 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:17,979 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 80 treesize of output 92 [2018-04-13 07:59:17,980 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 [2018-04-13 07:59:17,980 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:17,989 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,007 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:18,007 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:138, output treesize:136 [2018-04-13 07:59:18,133 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,134 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,134 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,135 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,135 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 53 treesize of output 148 [2018-04-13 07:59:18,135 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,169 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,170 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,170 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,171 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,171 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,172 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 51 treesize of output 153 [2018-04-13 07:59:18,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,203 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:18,203 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:237, output treesize:266 [2018-04-13 07:59:18,281 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,281 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,282 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,287 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 204 treesize of output 225 [2018-04-13 07:59:18,289 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 10 treesize of output 9 [2018-04-13 07:59:18,290 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,306 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,342 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,342 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,343 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,346 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,346 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,347 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,348 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 204 treesize of output 234 [2018-04-13 07:59:18,350 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 [2018-04-13 07:59:18,351 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,369 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:18,393 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:294, output treesize:234 [2018-04-13 07:59:18,539 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 32 [2018-04-13 07:59:18,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 55 [2018-04-13 07:59:18,541 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,542 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,577 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. [2018-04-13 07:59:18,577 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:407, output treesize:448 [2018-04-13 07:59:18,632 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,634 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,634 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,644 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 516 treesize of output 501 [2018-04-13 07:59:18,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-04-13 07:59:18,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,682 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,723 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,724 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,724 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,726 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,726 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,730 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:18,733 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 501 treesize of output 387 [2018-04-13 07:59:18,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-04-13 07:59:18,735 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,769 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,806 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. [2018-04-13 07:59:18,806 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:564, output treesize:508 [2018-04-13 07:59:18,917 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 63 treesize of output 63 [2018-04-13 07:59:18,918 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 5 treesize of output 3 [2018-04-13 07:59:18,919 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,923 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 29 treesize of output 1 [2018-04-13 07:59:18,924 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,925 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:18,961 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. [2018-04-13 07:59:18,961 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:518, output treesize:456 [2018-04-13 07:59:24,044 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,045 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,045 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,046 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,046 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,047 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 231 [2018-04-13 07:59:24,047 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:24,093 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,094 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,094 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,095 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,095 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,096 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 421 [2018-04-13 07:59:24,104 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 317 treesize of output 232 [2018-04-13 07:59:24,105 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:24,127 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,127 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 18 treesize of output 12 [2018-04-13 07:59:24,128 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:24,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 29 [2018-04-13 07:59:24,142 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:24,154 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 [2018-04-13 07:59:24,154 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:24,163 INFO L267 ElimStorePlain]: Start of recursive call 3: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 07:59:24,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:24,185 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:509, output treesize:194 [2018-04-13 07:59:24,370 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,371 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,372 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,372 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,373 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,373 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,374 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,374 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,377 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 195 [2018-04-13 07:59:24,384 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,396 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 5 case distinctions, treesize of input 93 treesize of output 73 [2018-04-13 07:59:24,398 INFO L267 ElimStorePlain]: Start of recursive call 3: 17 dim-0 vars, End of recursive call: 17 dim-0 vars, and 7 xjuncts. [2018-04-13 07:59:24,462 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 42 [2018-04-13 07:59:24,463 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:24,464 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2018-04-13 07:59:24,464 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:24,466 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,466 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,468 INFO L477 Elim1Store]: Elim1 did not use 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2018-04-13 07:59:24,468 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 07:59:24,470 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,473 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 2 case distinctions, treesize of input 76 treesize of output 68 [2018-04-13 07:59:24,474 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:24,476 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,479 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 2 case distinctions, treesize of input 70 treesize of output 62 [2018-04-13 07:59:24,480 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:24,482 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,485 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 2 case distinctions, treesize of input 64 treesize of output 56 [2018-04-13 07:59:24,485 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:24,488 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,491 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 2 case distinctions, treesize of input 74 treesize of output 66 [2018-04-13 07:59:24,491 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-13 07:59:24,590 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,591 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 07:59:24,591 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,593 INFO L477 Elim1Store]: Elim1 did not use 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 65 [2018-04-13 07:59:24,593 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:24,595 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,599 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 63 [2018-04-13 07:59:24,599 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:24,601 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,605 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 59 [2018-04-13 07:59:24,605 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:24,607 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,611 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 65 [2018-04-13 07:59:24,612 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:24,613 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,613 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 50 treesize of output 45 [2018-04-13 07:59:24,613 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:24,615 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,619 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 59 [2018-04-13 07:59:24,620 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 07:59:24,621 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 07:59:24,621 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 50 treesize of output 45 [2018-04-13 07:59:24,621 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 07:59:24,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 22 dim-0 vars, and 11 xjuncts. [2018-04-13 07:59:24,904 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 33 dim-0 vars, and 11 xjuncts. [2018-04-13 07:59:24,904 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 6 variables, input treesize:195, output treesize:496 [2018-04-13 07:59:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 07:59:25,381 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 07:59:25,381 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-04-13 07:59:25,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-13 07:59:25,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-13 07:59:25,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=942, Unknown=0, NotChecked=0, Total=1056 [2018-04-13 07:59:25,382 INFO L87 Difference]: Start difference. First operand 353 states and 401 transitions. Second operand 33 states. [2018-04-13 08:00:06,394 WARN L151 SmtUtils]: Spent 2186ms on a formula simplification. DAG size of input: 155 DAG size of output 97 [2018-04-13 08:00:12,885 WARN L148 SmtUtils]: Spent 285ms on a formula simplification that was a NOOP. DAG size: 139 [2018-04-13 08:00:19,661 WARN L148 SmtUtils]: Spent 325ms on a formula simplification that was a NOOP. DAG size: 141 [2018-04-13 08:00:26,015 WARN L148 SmtUtils]: Spent 1336ms on a formula simplification that was a NOOP. DAG size: 169 [2018-04-13 08:01:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:01:02,468 INFO L93 Difference]: Finished difference Result 446 states and 501 transitions. [2018-04-13 08:01:02,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-13 08:01:02,469 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 71 [2018-04-13 08:01:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:01:02,469 INFO L225 Difference]: With dead ends: 446 [2018-04-13 08:01:02,469 INFO L226 Difference]: Without dead ends: 446 [2018-04-13 08:01:02,470 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 63.3s TimeCoverageRelationStatistics Valid=469, Invalid=3677, Unknown=14, NotChecked=0, Total=4160 [2018-04-13 08:01:02,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2018-04-13 08:01:02,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 360. [2018-04-13 08:01:02,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2018-04-13 08:01:02,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 410 transitions. [2018-04-13 08:01:02,472 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 410 transitions. Word has length 71 [2018-04-13 08:01:02,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:01:02,472 INFO L459 AbstractCegarLoop]: Abstraction has 360 states and 410 transitions. [2018-04-13 08:01:02,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-13 08:01:02,472 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 410 transitions. [2018-04-13 08:01:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-13 08:01:02,472 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:01:02,473 INFO L355 BasicCegarLoop]: trace histogram [4, 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] [2018-04-13 08:01:02,473 INFO L408 AbstractCegarLoop]: === Iteration 99 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 08:01:02,473 INFO L82 PathProgramCache]: Analyzing trace with hash 100427646, now seen corresponding path program 6 times [2018-04-13 08:01:02,473 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:01:02,473 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:01:02,473 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:01:02,473 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 08:01:02,473 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:01:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:01:02,481 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:01:02,484 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:01:02,484 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:01:02,484 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:01:02,484 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-13 08:01:02,507 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-04-13 08:01:02,508 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 08:01:02,510 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:01:02,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:01:02,511 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,514 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 08:01:02,553 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,554 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 08:01:02,555 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,565 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:30 [2018-04-13 08:01:02,592 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 [2018-04-13 08:01:02,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:01:02,593 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,604 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,616 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 [2018-04-13 08:01:02,617 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 [2018-04-13 08:01:02,618 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,619 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,629 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,629 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:53, output treesize:48 [2018-04-13 08:01:02,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,684 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,685 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,685 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 [2018-04-13 08:01:02,685 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:01:02,701 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:01:02,714 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:77, output treesize:69 [2018-04-13 08:01:02,748 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,751 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 [2018-04-13 08:01:02,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:01:02,753 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,758 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,773 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,775 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,776 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 58 treesize of output 70 [2018-04-13 08:01:02,778 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 [2018-04-13 08:01:02,778 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,785 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,797 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:01:02,797 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:97, output treesize:94 [2018-04-13 08:01:02,884 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,885 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,886 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,886 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:02,887 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 88 [2018-04-13 08:01:02,887 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,913 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 30 treesize of output 51 [2018-04-13 08:01:02,913 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:02,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:01:02,935 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:191, output treesize:216 [2018-04-13 08:01:02,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 46 [2018-04-13 08:01:02,999 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,023 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,023 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 174 [2018-04-13 08:01:03,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 08:01:03,030 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,043 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,069 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,070 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,075 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,076 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,077 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,077 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 190 [2018-04-13 08:01:03,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2018-04-13 08:01:03,081 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,097 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,112 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. [2018-04-13 08:01:03,112 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:244, output treesize:169 [2018-04-13 08:01:03,222 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 11 treesize of output 50 [2018-04-13 08:01:03,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 91 [2018-04-13 08:01:03,224 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,226 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,252 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:01:03,252 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:375, output treesize:452 [2018-04-13 08:01:03,297 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,298 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,299 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,302 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,303 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,306 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 622 treesize of output 495 [2018-04-13 08:01:03,322 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 755 treesize of output 754 [2018-04-13 08:01:03,323 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,449 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:03,451 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 452 treesize of output 370 [2018-04-13 08:01:03,451 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:01:03,504 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 08:01:03,551 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,555 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:03,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 342 treesize of output 337 [2018-04-13 08:01:03,560 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:03,560 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 351 treesize of output 191 [2018-04-13 08:01:03,561 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,576 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,580 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,580 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:03,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 585 treesize of output 523 [2018-04-13 08:01:03,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 646 treesize of output 645 [2018-04-13 08:01:03,601 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,668 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,702 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 08:01:03,702 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 3 variables, input treesize:640, output treesize:721 [2018-04-13 08:01:03,868 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 164 [2018-04-13 08:01:03,869 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:03,870 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 25 treesize of output 21 [2018-04-13 08:01:03,870 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,890 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:03,945 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 1 case distinctions, treesize of input 558 treesize of output 562 [2018-04-13 08:01:03,948 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:03,948 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 512 treesize of output 508 [2018-04-13 08:01:03,948 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:04,008 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 558 treesize of output 511 [2018-04-13 08:01:04,008 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:04,064 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 511 treesize of output 509 [2018-04-13 08:01:04,064 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:04,115 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 08:01:04,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-04-13 08:01:04,183 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:741, output treesize:1113 [2018-04-13 08:01:06,510 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:06,511 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:06,511 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,512 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:06,512 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,513 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:06,514 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:06,514 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:06,516 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:06,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 546 treesize of output 441 [2018-04-13 08:01:06,524 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,538 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 5 case distinctions, treesize of input 278 treesize of output 228 [2018-04-13 08:01:06,542 INFO L267 ElimStorePlain]: Start of recursive call 3: 17 dim-0 vars, End of recursive call: 17 dim-0 vars, and 7 xjuncts. [2018-04-13 08:01:06,719 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:06,720 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:06,720 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,722 INFO L477 Elim1Store]: Elim1 did not use 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 271 treesize of output 213 [2018-04-13 08:01:06,722 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:06,725 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,730 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 2 case distinctions, treesize of input 271 treesize of output 211 [2018-04-13 08:01:06,730 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-13 08:01:06,733 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,738 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 2 case distinctions, treesize of input 263 treesize of output 203 [2018-04-13 08:01:06,738 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-13 08:01:06,740 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,746 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 2 case distinctions, treesize of input 259 treesize of output 199 [2018-04-13 08:01:06,747 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 08:01:06,748 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,754 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 2 case distinctions, treesize of input 253 treesize of output 193 [2018-04-13 08:01:06,755 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-13 08:01:06,756 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,757 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 163 [2018-04-13 08:01:06,757 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:06,759 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:06,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 169 [2018-04-13 08:01:06,759 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,025 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 165 [2018-04-13 08:01:07,026 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 08:01:07,028 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:01:07,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 201 treesize of output 173 [2018-04-13 08:01:07,029 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:01:07,035 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 195 treesize of output 171 [2018-04-13 08:01:07,036 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 08:01:07,037 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 183 treesize of output 151 [2018-04-13 08:01:07,038 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:01:07,043 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 1 case distinctions, treesize of input 177 treesize of output 157 [2018-04-13 08:01:07,044 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 08:01:07,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 151 [2018-04-13 08:01:07,046 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:01:07,051 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 165 [2018-04-13 08:01:07,052 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 08:01:07,406 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 157 treesize of output 132 [2018-04-13 08:01:07,406 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,408 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 153 treesize of output 128 [2018-04-13 08:01:07,408 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,410 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 143 treesize of output 118 [2018-04-13 08:01:07,410 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,411 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 147 treesize of output 122 [2018-04-13 08:01:07,412 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,413 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 151 treesize of output 126 [2018-04-13 08:01:07,413 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,415 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 157 treesize of output 132 [2018-04-13 08:01:07,415 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 124 [2018-04-13 08:01:07,417 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,418 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 163 treesize of output 138 [2018-04-13 08:01:07,419 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,420 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 147 treesize of output 122 [2018-04-13 08:01:07,421 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,422 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 151 treesize of output 126 [2018-04-13 08:01:07,422 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,424 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 163 treesize of output 138 [2018-04-13 08:01:07,424 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:07,732 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 22 dim-0 vars, and 11 xjuncts. [2018-04-13 08:01:08,021 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 140 treesize of output 116 [2018-04-13 08:01:08,023 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 19 treesize of output 1 [2018-04-13 08:01:08,023 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,040 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,040 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 23 treesize of output 19 [2018-04-13 08:01:08,040 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,055 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 27 treesize of output 3 [2018-04-13 08:01:08,056 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,069 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,069 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 [2018-04-13 08:01:08,069 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,079 INFO L267 ElimStorePlain]: Start of recursive call 29: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,083 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 132 treesize of output 112 [2018-04-13 08:01:08,085 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 46 treesize of output 15 [2018-04-13 08:01:08,085 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,101 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,102 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 [2018-04-13 08:01:08,102 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,116 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,116 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 16 [2018-04-13 08:01:08,116 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,129 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 [2018-04-13 08:01:08,129 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,138 INFO L267 ElimStorePlain]: Start of recursive call 34: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,143 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 144 treesize of output 120 [2018-04-13 08:01:08,145 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 61 treesize of output 22 [2018-04-13 08:01:08,145 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,161 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,161 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 [2018-04-13 08:01:08,161 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,174 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 11 [2018-04-13 08:01:08,174 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,185 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 [2018-04-13 08:01:08,185 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,195 INFO L267 ElimStorePlain]: Start of recursive call 39: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,199 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 144 treesize of output 116 [2018-04-13 08:01:08,201 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 61 treesize of output 22 [2018-04-13 08:01:08,201 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,215 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 11 treesize of output 1 [2018-04-13 08:01:08,215 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,229 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,230 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 [2018-04-13 08:01:08,230 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,241 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 [2018-04-13 08:01:08,241 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,250 INFO L267 ElimStorePlain]: Start of recursive call 44: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,254 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 132 treesize of output 112 [2018-04-13 08:01:08,262 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,263 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 60 treesize of output 38 [2018-04-13 08:01:08,263 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,279 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 28 treesize of output 15 [2018-04-13 08:01:08,279 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,292 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,293 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 16 [2018-04-13 08:01:08,293 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,305 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 [2018-04-13 08:01:08,305 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,314 INFO L267 ElimStorePlain]: Start of recursive call 49: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,319 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 140 treesize of output 116 [2018-04-13 08:01:08,321 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 1 [2018-04-13 08:01:08,321 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,348 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,348 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 23 treesize of output 19 [2018-04-13 08:01:08,349 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,365 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 27 treesize of output 3 [2018-04-13 08:01:08,365 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,377 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,378 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 [2018-04-13 08:01:08,378 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,388 INFO L267 ElimStorePlain]: Start of recursive call 54: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,393 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 144 treesize of output 120 [2018-04-13 08:01:08,395 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 1 [2018-04-13 08:01:08,395 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,410 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,411 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 23 treesize of output 19 [2018-04-13 08:01:08,411 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,424 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,425 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 41 treesize of output 25 [2018-04-13 08:01:08,425 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,438 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 [2018-04-13 08:01:08,438 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,447 INFO L267 ElimStorePlain]: Start of recursive call 59: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,452 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 140 treesize of output 116 [2018-04-13 08:01:08,454 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,454 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 42 treesize of output 26 [2018-04-13 08:01:08,454 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,471 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,472 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 41 treesize of output 25 [2018-04-13 08:01:08,472 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,486 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 [2018-04-13 08:01:08,486 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,498 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 [2018-04-13 08:01:08,498 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,507 INFO L267 ElimStorePlain]: Start of recursive call 64: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,512 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 144 treesize of output 120 [2018-04-13 08:01:08,513 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 1 [2018-04-13 08:01:08,513 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,531 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,531 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 23 treesize of output 19 [2018-04-13 08:01:08,532 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,547 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,547 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 41 treesize of output 25 [2018-04-13 08:01:08,547 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,560 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 [2018-04-13 08:01:08,560 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,569 INFO L267 ElimStorePlain]: Start of recursive call 69: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,574 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 144 treesize of output 120 [2018-04-13 08:01:08,576 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,576 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 42 treesize of output 26 [2018-04-13 08:01:08,576 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,593 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 7 treesize of output 1 [2018-04-13 08:01:08,594 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,608 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 3 [2018-04-13 08:01:08,608 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,620 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,621 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 [2018-04-13 08:01:08,621 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,631 INFO L267 ElimStorePlain]: Start of recursive call 74: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,636 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 144 treesize of output 120 [2018-04-13 08:01:08,638 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 47 [2018-04-13 08:01:08,638 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,655 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:01:08,655 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 30 treesize of output 20 [2018-04-13 08:01:08,656 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,668 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 [2018-04-13 08:01:08,669 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,680 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 [2018-04-13 08:01:08,681 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,689 INFO L267 ElimStorePlain]: Start of recursive call 79: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:01:08,833 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 11 dim-0 vars, and 11 xjuncts. [2018-04-13 08:01:08,833 INFO L202 ElimStorePlain]: Needed 83 recursive calls to eliminate 7 variables, input treesize:582, output treesize:204 [2018-04-13 08:01:08,996 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:01:08,996 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 08:01:08,996 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-04-13 08:01:08,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-13 08:01:08,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-13 08:01:08,997 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1095, Unknown=0, NotChecked=0, Total=1190 [2018-04-13 08:01:08,997 INFO L87 Difference]: Start difference. First operand 360 states and 410 transitions. Second operand 35 states. [2018-04-13 08:01:20,995 WARN L151 SmtUtils]: Spent 134ms on a formula simplification. DAG size of input: 165 DAG size of output 156 [2018-04-13 08:01:31,344 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 170 DAG size of output 148 [2018-04-13 08:01:48,300 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 171 DAG size of output 153 [2018-04-13 08:02:07,976 WARN L151 SmtUtils]: Spent 2165ms on a formula simplification. DAG size of input: 168 DAG size of output 159 [2018-04-13 08:02:17,350 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 165 DAG size of output 155 [2018-04-13 08:02:35,379 WARN L151 SmtUtils]: Spent 363ms on a formula simplification. DAG size of input: 174 DAG size of output 160 [2018-04-13 08:03:05,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:03:05,111 INFO L93 Difference]: Finished difference Result 489 states and 547 transitions. [2018-04-13 08:03:05,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-04-13 08:03:05,111 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 71 [2018-04-13 08:03:05,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:03:05,112 INFO L225 Difference]: With dead ends: 489 [2018-04-13 08:03:05,112 INFO L226 Difference]: Without dead ends: 489 [2018-04-13 08:03:05,112 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 46.4s TimeCoverageRelationStatistics Valid=492, Invalid=4467, Unknown=11, NotChecked=0, Total=4970 [2018-04-13 08:03:05,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2018-04-13 08:03:05,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 358. [2018-04-13 08:03:05,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2018-04-13 08:03:05,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 407 transitions. [2018-04-13 08:03:05,114 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 407 transitions. Word has length 71 [2018-04-13 08:03:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:03:05,115 INFO L459 AbstractCegarLoop]: Abstraction has 358 states and 407 transitions. [2018-04-13 08:03:05,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-13 08:03:05,115 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 407 transitions. [2018-04-13 08:03:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-13 08:03:05,115 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:03:05,115 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 08:03:05,115 INFO L408 AbstractCegarLoop]: === Iteration 100 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 08:03:05,115 INFO L82 PathProgramCache]: Analyzing trace with hash -658175771, now seen corresponding path program 4 times [2018-04-13 08:03:05,115 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:03:05,115 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:03:05,116 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:03:05,116 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 08:03:05,116 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:03:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:03:05,122 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:03:05,124 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:03:05,124 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:03:05,124 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:03:05,124 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 08:03:05,138 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 08:03:05,138 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 08:03:05,140 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:03:05,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:03:05,142 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,144 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,145 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 08:03:05,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:03:05,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:03:05,159 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,160 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,165 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,165 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:25 [2018-04-13 08:03:05,174 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,174 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,175 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 [2018-04-13 08:03:05,175 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,181 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:34 [2018-04-13 08:03:05,203 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 [2018-04-13 08:03:05,204 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 [2018-04-13 08:03:05,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,205 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,213 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:46 [2018-04-13 08:03:05,251 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,253 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 [2018-04-13 08:03:05,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:03:05,254 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,258 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:05,267 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:68, output treesize:65 [2018-04-13 08:03:05,283 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,284 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,285 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,285 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 [2018-04-13 08:03:05,285 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,298 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:05,298 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:76, output treesize:84 [2018-04-13 08:03:05,344 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,346 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 67 treesize of output 68 [2018-04-13 08:03:05,348 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 [2018-04-13 08:03:05,348 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,355 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:05,367 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:97, output treesize:102 [2018-04-13 08:03:05,436 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,437 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,441 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 [2018-04-13 08:03:05,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:03:05,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,465 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. [2018-04-13 08:03:05,465 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:142, output treesize:145 [2018-04-13 08:03:05,494 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,495 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,495 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,496 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,496 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 [2018-04-13 08:03:05,497 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:05,512 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:150, output treesize:142 [2018-04-13 08:03:05,568 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,569 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,574 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 [2018-04-13 08:03:05,575 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 [2018-04-13 08:03:05,576 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,587 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,602 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:05,603 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:155, output treesize:148 [2018-04-13 08:03:05,700 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,701 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,701 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,709 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 51 treesize of output 144 [2018-04-13 08:03:05,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 25 [2018-04-13 08:03:05,711 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,721 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,739 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. [2018-04-13 08:03:05,740 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:213, output treesize:227 [2018-04-13 08:03:05,778 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:03:05,778 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,798 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. [2018-04-13 08:03:05,798 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:233, output treesize:232 [2018-04-13 08:03:05,881 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,882 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,883 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:05,891 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 224 treesize of output 179 [2018-04-13 08:03:05,893 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 10 treesize of output 9 [2018-04-13 08:03:05,893 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,910 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:05,933 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 1 xjuncts. [2018-04-13 08:03:05,933 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:245, output treesize:220 [2018-04-13 08:03:05,983 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 246 treesize of output 131 [2018-04-13 08:03:05,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 08:03:05,986 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:05,998 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 17 treesize of output 5 [2018-04-13 08:03:05,999 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:06,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 08:03:06,010 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:06,021 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 [2018-04-13 08:03:06,021 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:06,030 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:06,043 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:06,044 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:262, output treesize:67 [2018-04-13 08:03:06,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 40 treesize of output 121 [2018-04-13 08:03:06,158 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-04-13 08:03:06,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 76 [2018-04-13 08:03:06,175 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:07,751 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:07,755 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 38 treesize of output 43 [2018-04-13 08:03:07,756 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 08:03:08,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:08,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 43 [2018-04-13 08:03:08,163 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-04-13 08:03:08,462 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:08,466 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 38 treesize of output 43 [2018-04-13 08:03:08,466 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-13 08:03:08,607 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:08,611 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 38 treesize of output 43 [2018-04-13 08:03:08,611 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-13 08:03:08,652 INFO L267 ElimStorePlain]: Start of recursive call 2: 16 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-04-13 08:03:08,696 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 28 dim-0 vars, and 5 xjuncts. [2018-04-13 08:03:08,697 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 8 variables, input treesize:81, output treesize:358 [2018-04-13 08:03:13,095 WARN L151 SmtUtils]: Spent 4324ms on a formula simplification. DAG size of input: 179 DAG size of output 119 [2018-04-13 08:03:13,099 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 74 treesize of output 65 [2018-04-13 08:03:13,099 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 64 [2018-04-13 08:03:13,155 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,205 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 84 treesize of output 75 [2018-04-13 08:03:13,205 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 23 dim-0 vars, 3 dim-1 vars, End of recursive call: 23 dim-0 vars, and 3 xjuncts. [2018-04-13 08:03:13,258 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 26 variables, input treesize:236, output treesize:202 [2018-04-13 08:03:13,460 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 72 treesize of output 82 [2018-04-13 08:03:13,462 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:03:13,462 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 [2018-04-13 08:03:13,462 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,485 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 [2018-04-13 08:03:13,485 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,500 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 [2018-04-13 08:03:13,500 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,513 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 [2018-04-13 08:03:13,513 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,523 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,558 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:13,559 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:13,563 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2018-04-13 08:03:13,566 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:03:13,570 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 [2018-04-13 08:03:13,570 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:13,593 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 5 treesize of output 1 [2018-04-13 08:03:13,593 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 08:03:13,615 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,626 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 [2018-04-13 08:03:13,627 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,636 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:13,658 INFO L267 ElimStorePlain]: Start of recursive call 1: 18 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 08:03:13,659 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 20 variables, input treesize:147, output treesize:7 [2018-04-13 08:03:13,724 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 2 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:03:13,724 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 08:03:13,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-04-13 08:03:13,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-04-13 08:03:13,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-04-13 08:03:13,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=957, Unknown=0, NotChecked=0, Total=1056 [2018-04-13 08:03:13,724 INFO L87 Difference]: Start difference. First operand 358 states and 407 transitions. Second operand 33 states. [2018-04-13 08:03:16,154 WARN L151 SmtUtils]: Spent 254ms on a formula simplification. DAG size of input: 129 DAG size of output 129 [2018-04-13 08:03:16,630 WARN L151 SmtUtils]: Spent 191ms on a formula simplification. DAG size of input: 126 DAG size of output 111 [2018-04-13 08:03:17,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:03:17,607 INFO L93 Difference]: Finished difference Result 464 states and 520 transitions. [2018-04-13 08:03:17,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-04-13 08:03:17,607 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 72 [2018-04-13 08:03:17,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:03:17,607 INFO L225 Difference]: With dead ends: 464 [2018-04-13 08:03:17,607 INFO L226 Difference]: Without dead ends: 464 [2018-04-13 08:03:17,608 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1153 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=459, Invalid=4097, Unknown=0, NotChecked=0, Total=4556 [2018-04-13 08:03:17,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2018-04-13 08:03:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 372. [2018-04-13 08:03:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-04-13 08:03:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 423 transitions. [2018-04-13 08:03:17,610 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 423 transitions. Word has length 72 [2018-04-13 08:03:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:03:17,610 INFO L459 AbstractCegarLoop]: Abstraction has 372 states and 423 transitions. [2018-04-13 08:03:17,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-04-13 08:03:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 423 transitions. [2018-04-13 08:03:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-13 08:03:17,610 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:03:17,610 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-13 08:03:17,610 INFO L408 AbstractCegarLoop]: === Iteration 101 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 08:03:17,610 INFO L82 PathProgramCache]: Analyzing trace with hash -2036782149, now seen corresponding path program 9 times [2018-04-13 08:03:17,611 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:03:17,611 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:03:17,611 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:03:17,611 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 08:03:17,611 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:03:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:03:17,618 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:03:17,619 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:03:17,619 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:03:17,619 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:03:17,620 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 08:03:17,641 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-13 08:03:17,641 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 08:03:17,643 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:03:17,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:03:17,645 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:03:17,648 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,651 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,651 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 08:03:17,674 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,675 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 [2018-04-13 08:03:17,675 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,682 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-13 08:03:17,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,687 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,688 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:24 [2018-04-13 08:03:17,706 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 [2018-04-13 08:03:17,715 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 [2018-04-13 08:03:17,715 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,717 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,733 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,734 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:48 [2018-04-13 08:03:17,800 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,801 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,801 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 [2018-04-13 08:03:17,802 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,820 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,820 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,821 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,821 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,822 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 [2018-04-13 08:03:17,822 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,835 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. [2018-04-13 08:03:17,836 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:79, output treesize:86 [2018-04-13 08:03:17,881 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 [2018-04-13 08:03:17,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:03:17,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,885 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,906 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:17,908 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 70 treesize of output 71 [2018-04-13 08:03:17,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 08:03:17,910 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,917 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,942 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:17,942 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:117, output treesize:98 [2018-04-13 08:03:17,972 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 31 treesize of output 15 [2018-04-13 08:03:17,973 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 [2018-04-13 08:03:17,974 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,975 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:17,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:17,988 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:110, output treesize:83 [2018-04-13 08:03:18,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-04-13 08:03:18,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-04-13 08:03:18,043 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:18,047 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:18,064 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. [2018-04-13 08:03:18,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:102, output treesize:98 [2018-04-13 08:03:18,098 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,098 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,128 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,129 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 35 treesize of output 76 [2018-04-13 08:03:18,129 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:18,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,161 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,161 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,162 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,162 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 84 [2018-04-13 08:03:18,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:18,189 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. [2018-04-13 08:03:18,190 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:115, output treesize:130 [2018-04-13 08:03:18,282 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 66 treesize of output 79 [2018-04-13 08:03:18,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2018-04-13 08:03:18,292 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:18,317 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:03:18,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 42 [2018-04-13 08:03:18,318 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:18,333 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:18,367 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. [2018-04-13 08:03:18,368 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:143, output treesize:301 [2018-04-13 08:03:18,661 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,664 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 136 treesize of output 143 [2018-04-13 08:03:18,679 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 08:03:18,679 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:18,709 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:18,774 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:18,777 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 180 treesize of output 187 [2018-04-13 08:03:18,778 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:03:18,778 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:18,808 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:18,864 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:18,864 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 9 variables, input treesize:328, output treesize:310 [2018-04-13 08:03:18,964 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 196 treesize of output 180 [2018-04-13 08:03:18,965 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,048 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,048 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,049 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,049 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,050 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,051 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 175 [2018-04-13 08:03:19,051 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 135 [2018-04-13 08:03:19,135 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,204 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,204 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,205 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,206 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,206 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,207 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,209 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,209 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 224 [2018-04-13 08:03:19,210 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 4 dim-1 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:19,286 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 11 variables, input treesize:338, output treesize:306 [2018-04-13 08:03:19,434 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,434 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,437 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 225 [2018-04-13 08:03:19,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 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 [2018-04-13 08:03:19,441 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,489 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,571 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 148 treesize of output 151 [2018-04-13 08:03:19,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:03:19,573 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,604 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,607 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 199 treesize of output 202 [2018-04-13 08:03:19,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:03:19,609 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,645 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,722 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:19,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 151 [2018-04-13 08:03:19,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2018-04-13 08:03:19,727 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,755 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,834 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 3 dim-2 vars, End of recursive call: 7 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:19,835 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 11 variables, input treesize:362, output treesize:396 [2018-04-13 08:03:19,921 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 297 treesize of output 281 [2018-04-13 08:03:19,923 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 15 treesize of output 3 [2018-04-13 08:03:19,923 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:19,959 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,034 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 230 treesize of output 214 [2018-04-13 08:03:20,036 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 [2018-04-13 08:03:20,036 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,063 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-2 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:20,135 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 11 variables, input treesize:528, output treesize:474 [2018-04-13 08:03:20,339 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,339 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,348 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 284 treesize of output 316 [2018-04-13 08:03:20,350 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 40 [2018-04-13 08:03:20,350 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,393 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,477 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 246 [2018-04-13 08:03:20,480 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 30 treesize of output 40 [2018-04-13 08:03:20,480 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,510 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,586 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-2 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:20,587 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 11 variables, input treesize:502, output treesize:468 [2018-04-13 08:03:20,693 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 194 [2018-04-13 08:03:20,701 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 20 treesize of output 19 [2018-04-13 08:03:20,701 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,806 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,807 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,811 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:20,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 267 [2018-04-13 08:03:20,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:03:20,817 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,857 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:20,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-2 vars, End of recursive call: 9 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:20,927 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 11 variables, input treesize:514, output treesize:482 [2018-04-13 08:03:21,158 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:21,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:21,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 211 [2018-04-13 08:03:21,166 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 [2018-04-13 08:03:21,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,195 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:03:21,195 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 [2018-04-13 08:03:21,195 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,223 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 [2018-04-13 08:03:21,223 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,247 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,319 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:21,320 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:21,323 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:21,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 279 [2018-04-13 08:03:21,328 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 [2018-04-13 08:03:21,329 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,366 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 [2018-04-13 08:03:21,366 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,404 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 5 treesize of output 1 [2018-04-13 08:03:21,404 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,437 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 [2018-04-13 08:03:21,437 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,466 INFO L267 ElimStorePlain]: Start of recursive call 6: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,524 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 2 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:21,525 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 11 variables, input treesize:502, output treesize:436 [2018-04-13 08:03:21,714 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:21,717 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:03:21,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 160 [2018-04-13 08:03:21,724 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 50 [2018-04-13 08:03:21,724 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:21,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 61 [2018-04-13 08:03:21,751 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:21,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 55 [2018-04-13 08:03:21,753 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:03:21,786 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:03:21,791 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 2 case distinctions, treesize of input 91 treesize of output 79 [2018-04-13 08:03:21,791 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-04-13 08:03:21,792 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:03:21,793 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 65 [2018-04-13 08:03:21,793 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 08:03:21,837 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:21,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2018-04-13 08:03:21,875 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:255, output treesize:167 [2018-04-13 08:03:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:03:22,238 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 08:03:22,238 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-04-13 08:03:22,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-13 08:03:22,239 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-13 08:03:22,239 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1144, Unknown=1, NotChecked=0, Total=1260 [2018-04-13 08:03:22,239 INFO L87 Difference]: Start difference. First operand 372 states and 423 transitions. Second operand 36 states. [2018-04-13 08:03:26,238 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 126 DAG size of output 120 [2018-04-13 08:03:27,407 WARN L151 SmtUtils]: Spent 178ms on a formula simplification. DAG size of input: 156 DAG size of output 154 [2018-04-13 08:03:28,072 WARN L151 SmtUtils]: Spent 398ms on a formula simplification. DAG size of input: 182 DAG size of output 180 [2018-04-13 08:03:30,081 WARN L151 SmtUtils]: Spent 803ms on a formula simplification. DAG size of input: 224 DAG size of output 218 [2018-04-13 08:03:32,397 WARN L151 SmtUtils]: Spent 1968ms on a formula simplification. DAG size of input: 267 DAG size of output 260 [2018-04-13 08:03:38,927 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 184 DAG size of output 181 [2018-04-13 08:03:39,355 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 167 DAG size of output 163 [2018-04-13 08:03:39,947 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 236 DAG size of output 168 [2018-04-13 08:03:40,223 WARN L151 SmtUtils]: Spent 144ms on a formula simplification. DAG size of input: 182 DAG size of output 178 [2018-04-13 08:03:40,812 WARN L151 SmtUtils]: Spent 245ms on a formula simplification. DAG size of input: 268 DAG size of output 175 [2018-04-13 08:03:44,214 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 128 DAG size of output 106 [2018-04-13 08:03:46,583 WARN L151 SmtUtils]: Spent 178ms on a formula simplification. DAG size of input: 240 DAG size of output 172 [2018-04-13 08:03:49,537 WARN L151 SmtUtils]: Spent 249ms on a formula simplification. DAG size of input: 156 DAG size of output 148 [2018-04-13 08:03:57,368 WARN L151 SmtUtils]: Spent 7675ms on a formula simplification. DAG size of input: 275 DAG size of output 207 [2018-04-13 08:04:03,724 WARN L151 SmtUtils]: Spent 236ms on a formula simplification. DAG size of input: 183 DAG size of output 144 [2018-04-13 08:04:05,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:04:05,660 INFO L93 Difference]: Finished difference Result 518 states and 585 transitions. [2018-04-13 08:04:05,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-13 08:04:05,660 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 72 [2018-04-13 08:04:05,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:04:05,661 INFO L225 Difference]: With dead ends: 518 [2018-04-13 08:04:05,661 INFO L226 Difference]: Without dead ends: 518 [2018-04-13 08:04:05,661 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1405 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=623, Invalid=5220, Unknown=9, NotChecked=0, Total=5852 [2018-04-13 08:04:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2018-04-13 08:04:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 404. [2018-04-13 08:04:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2018-04-13 08:04:05,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 461 transitions. [2018-04-13 08:04:05,663 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 461 transitions. Word has length 72 [2018-04-13 08:04:05,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:04:05,664 INFO L459 AbstractCegarLoop]: Abstraction has 404 states and 461 transitions. [2018-04-13 08:04:05,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-13 08:04:05,664 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 461 transitions. [2018-04-13 08:04:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-13 08:04:05,664 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:04:05,664 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-13 08:04:05,664 INFO L408 AbstractCegarLoop]: === Iteration 102 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 08:04:05,664 INFO L82 PathProgramCache]: Analyzing trace with hash -2036782148, now seen corresponding path program 7 times [2018-04-13 08:04:05,664 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:04:05,664 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:04:05,665 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:04:05,665 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 08:04:05,665 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:04:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:04:05,673 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:04:05,675 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:04:05,676 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:04:05,676 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:04:05,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:04:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:04:05,707 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:04:05,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:04:05,708 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:04:05,712 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,715 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,715 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 08:04:05,739 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:05,739 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 [2018-04-13 08:04:05,740 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,749 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:05,750 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:05,750 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 [2018-04-13 08:04:05,750 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,757 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,757 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:37 [2018-04-13 08:04:05,781 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 [2018-04-13 08:04:05,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:04:05,783 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,784 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,795 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 [2018-04-13 08:04:05,797 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 [2018-04-13 08:04:05,797 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,798 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,807 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:60, output treesize:61 [2018-04-13 08:04:05,871 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:05,871 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:05,872 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:05,872 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 [2018-04-13 08:04:05,873 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,889 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 [2018-04-13 08:04:05,889 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,903 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:05,904 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:87, output treesize:94 [2018-04-13 08:04:05,951 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:05,954 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 [2018-04-13 08:04:05,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:04:05,956 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,959 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:05,986 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:05,988 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:05,988 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 80 treesize of output 92 [2018-04-13 08:04:05,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 08:04:05,990 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,000 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,018 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. [2018-04-13 08:04:06,018 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:132, output treesize:115 [2018-04-13 08:04:06,102 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,102 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,103 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,103 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,104 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,104 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 129 [2018-04-13 08:04:06,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,135 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,135 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 53 treesize of output 130 [2018-04-13 08:04:06,135 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,159 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. [2018-04-13 08:04:06,159 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:168, output treesize:191 [2018-04-13 08:04:06,227 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,228 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,229 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,232 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,234 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 162 treesize of output 164 [2018-04-13 08:04:06,236 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 [2018-04-13 08:04:06,236 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,256 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,291 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,293 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 [2018-04-13 08:04:06,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:04:06,295 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,299 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,327 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:06,327 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:217, output treesize:221 [2018-04-13 08:04:06,443 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,444 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,444 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,445 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,445 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,446 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 192 [2018-04-13 08:04:06,447 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,475 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 259 [2018-04-13 08:04:06,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,505 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:06,505 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:298, output treesize:288 [2018-04-13 08:04:06,593 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,594 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,594 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,595 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,597 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 224 [2018-04-13 08:04:06,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2018-04-13 08:04:06,606 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,669 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,672 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 42 [2018-04-13 08:04:06,673 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 28 treesize of output 27 [2018-04-13 08:04:06,674 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,678 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,710 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 1 xjuncts. [2018-04-13 08:04:06,710 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:314, output treesize:318 [2018-04-13 08:04:06,864 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,876 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:06,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 486 treesize of output 273 [2018-04-13 08:04:06,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:04:06,881 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,909 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,952 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 71 treesize of output 72 [2018-04-13 08:04:06,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 08:04:06,954 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,958 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:06,992 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 1 xjuncts. [2018-04-13 08:04:06,992 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:509, output treesize:453 [2018-04-13 08:04:07,183 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:07,187 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:07,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 439 treesize of output 211 [2018-04-13 08:04:07,194 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:04:07,199 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 64 [2018-04-13 08:04:07,199 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-04-13 08:04:07,231 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 82 treesize of output 62 [2018-04-13 08:04:07,232 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:07,254 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 46 treesize of output 26 [2018-04-13 08:04:07,254 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:07,274 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 55 treesize of output 31 [2018-04-13 08:04:07,274 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:07,296 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 [2018-04-13 08:04:07,297 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:07,312 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:07,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 7 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 [2018-04-13 08:04:07,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-04-13 08:04:07,341 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:07,346 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:04:07,346 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 [2018-04-13 08:04:07,346 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:07,349 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:07,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:07,372 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 9 variables, input treesize:481, output treesize:79 [2018-04-13 08:04:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:04:09,590 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 08:04:09,590 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-04-13 08:04:09,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-13 08:04:09,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-13 08:04:09,591 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=912, Unknown=1, NotChecked=0, Total=992 [2018-04-13 08:04:09,591 INFO L87 Difference]: Start difference. First operand 404 states and 461 transitions. Second operand 32 states. [2018-04-13 08:04:27,444 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 191 DAG size of output 92 [2018-04-13 08:04:28,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:04:28,411 INFO L93 Difference]: Finished difference Result 538 states and 607 transitions. [2018-04-13 08:04:28,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-04-13 08:04:28,411 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 72 [2018-04-13 08:04:28,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:04:28,412 INFO L225 Difference]: With dead ends: 538 [2018-04-13 08:04:28,412 INFO L226 Difference]: Without dead ends: 538 [2018-04-13 08:04:28,412 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=396, Invalid=3506, Unknown=4, NotChecked=0, Total=3906 [2018-04-13 08:04:28,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2018-04-13 08:04:28,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 418. [2018-04-13 08:04:28,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2018-04-13 08:04:28,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 477 transitions. [2018-04-13 08:04:28,414 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 477 transitions. Word has length 72 [2018-04-13 08:04:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:04:28,414 INFO L459 AbstractCegarLoop]: Abstraction has 418 states and 477 transitions. [2018-04-13 08:04:28,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-13 08:04:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 477 transitions. [2018-04-13 08:04:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-13 08:04:28,415 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:04:28,415 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-04-13 08:04:28,415 INFO L408 AbstractCegarLoop]: === Iteration 103 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 08:04:28,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1958841691, now seen corresponding path program 10 times [2018-04-13 08:04:28,416 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:04:28,416 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:04:28,416 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:04:28,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 08:04:28,416 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:04:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:04:28,423 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:04:28,424 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:04:28,424 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:04:28,424 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:04:28,425 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-13 08:04:28,442 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-13 08:04:28,442 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 08:04:28,444 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:04:28,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:04:28,445 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,446 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,446 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-13 08:04:28,458 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,459 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,459 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 [2018-04-13 08:04:28,460 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,464 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-04-13 08:04:28,482 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 [2018-04-13 08:04:28,483 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 [2018-04-13 08:04:28,483 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,485 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,491 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,491 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:33 [2018-04-13 08:04:28,527 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,528 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,529 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,529 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 [2018-04-13 08:04:28,529 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,536 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,536 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:55 [2018-04-13 08:04:28,567 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,569 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 54 treesize of output 55 [2018-04-13 08:04:28,571 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 [2018-04-13 08:04:28,571 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,586 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,586 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:73, output treesize:67 [2018-04-13 08:04:28,641 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,642 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,642 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,643 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,643 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 132 [2018-04-13 08:04:28,643 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,657 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:28,657 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:108, output treesize:132 [2018-04-13 08:04:28,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,705 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,712 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 [2018-04-13 08:04:28,714 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 08:04:28,714 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,725 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,738 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:28,738 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:145, output treesize:144 [2018-04-13 08:04:28,835 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,837 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,837 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 267 [2018-04-13 08:04:28,838 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,857 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:28,857 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:221, output treesize:267 [2018-04-13 08:04:28,925 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,925 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,926 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:04:28,933 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 203 [2018-04-13 08:04:28,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 [2018-04-13 08:04:28,935 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,954 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:28,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:28,975 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:285, output treesize:261 [2018-04-13 08:04:29,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 422 treesize of output 227 [2018-04-13 08:04:29,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:04:29,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:29,129 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:04:29,152 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. [2018-04-13 08:04:29,152 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:427, output treesize:399 [2018-04-13 08:04:29,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 403 treesize of output 176 [2018-04-13 08:04:29,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2018-04-13 08:04:29,237 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:29,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2018-04-13 08:04:29,255 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:29,278 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 26 [2018-04-13 08:04:29,278 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:29,293 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 42 treesize of output 22 [2018-04-13 08:04:29,294 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:29,308 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 [2018-04-13 08:04:29,308 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-13 08:04:29,320 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:29,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-13 08:04:29,333 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:408, output treesize:66 [2018-04-13 08:04:33,598 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 08:04:33,598 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 08:04:33,598 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-04-13 08:04:33,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-13 08:04:33,599 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-13 08:04:33,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=716, Unknown=2, NotChecked=0, Total=812 [2018-04-13 08:04:33,599 INFO L87 Difference]: Start difference. First operand 418 states and 477 transitions. Second operand 29 states. [2018-04-13 08:05:06,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 08:05:06,737 INFO L93 Difference]: Finished difference Result 524 states and 594 transitions. [2018-04-13 08:05:06,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-04-13 08:05:06,737 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 72 [2018-04-13 08:05:06,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 08:05:06,738 INFO L225 Difference]: With dead ends: 524 [2018-04-13 08:05:06,738 INFO L226 Difference]: Without dead ends: 524 [2018-04-13 08:05:06,738 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=374, Invalid=2811, Unknown=7, NotChecked=0, Total=3192 [2018-04-13 08:05:06,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-04-13 08:05:06,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 429. [2018-04-13 08:05:06,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2018-04-13 08:05:06,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 490 transitions. [2018-04-13 08:05:06,740 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 490 transitions. Word has length 72 [2018-04-13 08:05:06,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 08:05:06,740 INFO L459 AbstractCegarLoop]: Abstraction has 429 states and 490 transitions. [2018-04-13 08:05:06,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-13 08:05:06,740 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 490 transitions. [2018-04-13 08:05:06,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-13 08:05:06,740 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 08:05:06,740 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-04-13 08:05:06,740 INFO L408 AbstractCegarLoop]: === Iteration 104 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr34EnsuresViolationMEMORY_LEAK, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr33AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr32AssertViolationMEMORY_FREE]=== [2018-04-13 08:05:06,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1958841690, now seen corresponding path program 8 times [2018-04-13 08:05:06,741 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 08:05:06,741 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 08:05:06,741 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:05:06,741 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 08:05:06,741 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 08:05:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 08:05:06,748 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 08:05:06,749 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 08:05:06,749 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 08:05:06,749 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 08:05:06,750 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 08:05:06,769 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 08:05:06,769 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 08:05:06,771 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 08:05:06,772 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:05:06,773 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,775 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 08:05:06,801 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:06,802 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:06,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-13 08:05:06,802 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 08:05:06,812 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,819 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,819 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:35 [2018-04-13 08:05:06,843 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 [2018-04-13 08:05:06,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:05:06,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,846 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,857 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 [2018-04-13 08:05:06,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 08:05:06,858 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,859 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,868 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,868 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:58, output treesize:59 [2018-04-13 08:05:06,920 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:06,920 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:06,921 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:06,921 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 [2018-04-13 08:05:06,921 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,936 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 18 treesize of output 27 [2018-04-13 08:05:06,937 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:05:06,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:82, output treesize:89 [2018-04-13 08:05:06,987 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:06,989 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 [2018-04-13 08:05:06,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:05:06,991 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:06,995 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,015 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,017 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 [2018-04-13 08:05:07,018 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 [2018-04-13 08:05:07,019 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,025 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,041 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. [2018-04-13 08:05:07,042 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:120, output treesize:107 [2018-04-13 08:05:07,121 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,121 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,122 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,123 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,123 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 [2018-04-13 08:05:07,123 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 82 [2018-04-13 08:05:07,142 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,158 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. [2018-04-13 08:05:07,158 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:157, output treesize:148 [2018-04-13 08:05:07,203 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,204 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,209 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 [2018-04-13 08:05:07,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2018-04-13 08:05:07,211 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,222 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,244 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,246 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 36 [2018-04-13 08:05:07,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-04-13 08:05:07,248 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,251 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-13 08:05:07,271 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:174, output treesize:178 [2018-04-13 08:05:07,398 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,398 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,399 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 57 [2018-04-13 08:05:07,399 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 163 [2018-04-13 08:05:07,433 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 08:05:07,465 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:293, output treesize:326 [2018-04-13 08:05:07,557 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 34 treesize of output 26 [2018-04-13 08:05:07,557 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,599 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,600 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,601 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,611 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 282 treesize of output 213 [2018-04-13 08:05:07,613 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 [2018-04-13 08:05:07,613 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,640 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,677 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,678 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 08:05:07,683 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 65 treesize of output 116 [2018-04-13 08:05:07,685 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 28 treesize of output 27 [2018-04-13 08:05:07,685 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,695 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,735 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-13 08:05:07,735 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:354, output treesize:316 [2018-04-13 08:05:07,885 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 11 treesize of output 32 [2018-04-13 08:05:07,886 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 32 treesize of output 55 [2018-04-13 08:05:07,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 08:05:07,924 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. [2018-04-13 08:05:07,924 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:417, output treesize:458 [2018-04-13 08:05:08,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 553 treesize of output 311 [2018-04-13 08:05:08,025 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-04-13 08:05:08,043 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-04-13 08:05:08,044 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 08:06:17,304 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:06:33,359 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 08:06:33,361 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 481 treesize of output 390 [2018-04-13 08:06:33,361 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:06:50,401 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:07:05,539 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 294 treesize of output 252 [2018-04-13 08:07:05,541 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 08:07:05,615 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-13 08:07:27,283 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. Received shutdown request... [2018-04-13 08:07:59,615 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-04-13 08:07:59,616 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-13 08:07:59,619 WARN L197 ceAbstractionStarter]: Timeout [2018-04-13 08:07:59,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 08:07:59 BoogieIcfgContainer [2018-04-13 08:07:59,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-13 08:07:59,619 INFO L168 Benchmark]: Toolchain (without parser) took 822338.18 ms. Allocated memory was 403.7 MB in the beginning and 543.7 MB in the end (delta: 140.0 MB). Free memory was 340.5 MB in the beginning and 352.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 191.5 MB. Max. memory is 5.3 GB. [2018-04-13 08:07:59,620 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 403.7 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 08:07:59,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.46 ms. Allocated memory is still 403.7 MB. Free memory was 340.5 MB in the beginning and 315.1 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. [2018-04-13 08:07:59,621 INFO L168 Benchmark]: Boogie Preprocessor took 46.70 ms. Allocated memory is still 403.7 MB. Free memory was 315.1 MB in the beginning and 312.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-13 08:07:59,621 INFO L168 Benchmark]: RCFGBuilder took 434.79 ms. Allocated memory was 403.7 MB in the beginning and 611.8 MB in the end (delta: 208.1 MB). Free memory was 311.2 MB in the beginning and 537.7 MB in the end (delta: -226.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. [2018-04-13 08:07:59,621 INFO L168 Benchmark]: TraceAbstraction took 821620.69 ms. Allocated memory was 611.8 MB in the beginning and 543.7 MB in the end (delta: -68.2 MB). Free memory was 535.9 MB in the beginning and 352.9 MB in the end (delta: 183.0 MB). Peak memory consumption was 178.8 MB. Max. memory is 5.3 GB. [2018-04-13 08:07:59,623 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 403.7 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 233.46 ms. Allocated memory is still 403.7 MB. Free memory was 340.5 MB in the beginning and 315.1 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 46.70 ms. Allocated memory is still 403.7 MB. Free memory was 315.1 MB in the beginning and 312.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 434.79 ms. Allocated memory was 403.7 MB in the beginning and 611.8 MB in the end (delta: 208.1 MB). Free memory was 311.2 MB in the beginning and 537.7 MB in the end (delta: -226.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 821620.69 ms. Allocated memory was 611.8 MB in the beginning and 543.7 MB in the end (delta: -68.2 MB). Free memory was 535.9 MB in the beginning and 352.9 MB in the end (delta: 183.0 MB). Peak memory consumption was 178.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 639]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 639). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 649]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 649). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 626]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 626). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 666]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 666). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 665]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 665). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 656]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 656). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 660]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 660). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 658]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 658). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 666]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 666). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 650]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 650). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 654]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 654). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 662]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 662). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 638]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 649]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 649). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 643). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 656]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 656). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 660]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 660). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 665]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 665). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 667]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 667). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 654]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 654). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 646]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 643]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 643). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 658]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 658). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 667]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 667). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 647]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 647). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 662]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 662). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 646]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 646). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 647]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 647). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 670]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 670). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 639]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 639). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 650]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 650). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - TimeoutResultAtElement [Line: 670]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 670). Cancelled while BasicCegarLoop was analyzing trace of length 73 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 407. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 108 locations, 35 error locations. TIMEOUT Result, 821.5s OverallTime, 104 OverallIterations, 5 TraceHistogramMax, 537.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9430 SDtfs, 40997 SDslu, 107521 SDs, 0 SdLazy, 137703 SolverSat, 5798 SolverUnsat, 97 SolverUnknown, 0 SolverNotchecked, 259.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7731 GetRequests, 3397 SyntacticMatches, 67 SemanticMatches, 4267 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 43181 ImplicationChecksByTransitivity, 325.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=103, 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: 0.3s AutomataMinimizationTime, 103 MinimizatonAttempts, 8792 StatesRemovedByMinimization, 102 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 107.8s InterpolantComputationTime, 11367 NumberOfCodeBlocks, 11317 NumberOfCodeBlocksAsserted, 280 NumberOfCheckSat, 5708 ConstructedInterpolants, 2900 QuantifiedInterpolants, 25480362 SizeOfPredicates, 2065 NumberOfNonLiveVariables, 21285 ConjunctsInSsa, 5525 ConjunctsInUnsatCore, 103 InterpolantComputations, 11 PerfectInterpolantSequences, 167/2405 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_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-13_08-07-59-629.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/list-ext_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-13_08-07-59-629.csv Completed graceful shutdown