Trace number 310300

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
FH 2007-02-08SAT 0.05599 0.0581489

General information on the benchmark

Namerandom/2+p/p0.9/v1170/
unif2p-p0.9-v1170-c4235-S30263233-06-SAT.cnf
MD5SUM19bf4df3850e38181cad28d3dbbeced7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.026995
Satisfiable
(Un)Satisfiability was proved
Number of variables1170
Number of clauses4234
Sum of the clauses size12279
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2423
Number of clauses of size 33811
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.05	c try 1 flip j 25484
0.00/0.05	c A solution is found
0.00/0.05	s SATISFIABLE
0.00/0.05	v 1 2 3 -4 5 -6 7 -8 9 -10 11 -12 -13 14 -15 16 17 18 19 -20 -21 -22 -23 -24 -25 26 27 28 -29 -30 -31 32 -33 34 -35 -36 -37 38 -39 -40 41 -42 -43 -44 45 46 -47 -48 49 -50 51 52 53 -54 -55 56 57 -58 -59 -60 -61 -62 63 64 65 66 -67 -68 -69 -70 71 -72 -73 -74 -75 -76 77 -78 79 -80 -81 -82 83 -84 85 -86 87 88 -89 -90 91 92 93 -94 -95 -96 -97 98 -99 -100 101 -102 -103 -104 105 106 -107 -108 109 110 -111 -112 -113 -114 -115 -116 -117 118 119 120 -121 122 123 124 125 -126 127 -128 -129 130 -131 132 133 -134 -135 -136 137 138 -139 -140 -141 -142 143 -144 145 146 -147 148 149 150 -151 152 153 154 -155 -156 -157 -158 159 160 -161 162 163 -164 165 166 167 -168 169 170 171 172 -173 -174 175 -176 177 178 179 180 -181 -182 183 184 -185 -186 187 -188 -189 -190 -191 192 -193 194 -195 -196 -197 -198 -199 -200 201 202 203 204 -205 -206 -207 208 -209 210 211 212 -213 214 215 -216 217 -218 -219 -220 221 222 -223 -224 -225 226 -227 228 229 230 -231 -232 -233 -234 -235 -236 -237 238 -239 240 241 242 -243 244 -245 246 -247 248 -249 250 251 -252 -253 -254 255 256 257 -258 259 -260 261 262 -263 264 265 -266 267 -268 269 270 271 -272 273 -274 275 276 277 278 279 280 -281 282 283 -284 285 286 -287 -288 289 290 -291 292 293 294 295 -296 -297 -298 299 300 -301 302 303 -304 -305 306 -307 308 309 -310 -311 -312 313 314 -315 316 -317 318 319 -320 321 322 323 324 325 326 -327 328 -329 330 331 332 333 334 335 -336 337 -338 -339 340 -341 -342 -343 -344 345 346 -347 348 -349 350 351 352 353 354 -355 356 -357 -358 359 -360 -361 -362 -363 -364 -365 -366 367 -368 369 370 -371 372 -373 -374 -375 376 377 378 379 380 381 -382 383 -384 385 -386 387 -388 -389 -390 391 -392 393 394 395 -396 -397 398 -399 400 401 -402 -403 404 -405 406 407 -408 409 -410 -411 -412 -413 414 415 -416 417 418 419 420 421 422 -423 -424 -425 426 -427 -428 429 -430 431 432 433 434 435 436 -437 -438 -439 -440 441 442 443 -444 -445 446 447 448 -449 450 451 -452 -453 454 455 456 -457 458 -459 -460 461 -462 463 464 465 466 -467 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-686 -687 688 -689 690 691 692 693 -694 695 -696 697 -698 -699 -700 701 702 -703 704 -705 -706 -707 708 -709 710 711 -712 713 714 -715 716 717 718 -719 -720 -721 -722 723 -724 725 726 -727 728 729 730 731 732 -733 -734 735 -736 -737 -738 739 740 -741 -742 -743 744 -745 -746 747 748 -749 -750 751 752 -753 754 -755 756 757 758 759 760 -761 762 763 -764 765 -766 -767 768 -769 -770 -771 -772 -773 774 775 -776 777 778 -779 780 -781 -782 783 784 -785 786 -787 -788 -789 790 -791 -792 793 -794 795 -796 -797 798 -799 -800 801 -802 -803 804 -805 806 -807 808 809 -810 811 812 813 -814 815 -816 817 818 -819 -820 -821 822 823 -824 825 -826 -827 828 -829 -830 -831 832 -833 834 835 -836 837 -838 -839 840 841 -842 843 -844 845 846 -847 848 -849 850 851 -852 853 854 -855 -856 857 858 859 860 861 -862 -863 -864 -865 866 867 868 -869 -870 -871 -872 873 -874 875 876 -877 878 879 -880 -881 -882 883 -884 885 886 887 888 -889 890 -891 -892 893 -894 895 -896 897 898 -899 -900 901 -902 -903 904 -905 -906 907 -908 909 -910 -911 -912 913 -914 915 916 -917 918 919 -920 -921 922 923 -924 925 -926 -927 -928 929 -930 931 932 933 934 -935 -936 937 938 939 -940 941 942 943 944 -945 946 947 -948 949 950 951 -952 -953 -954 955 -956 -957 958 -959 960 961 -962 963 -964 -965 -966 967 -968 -969 970 971 972 973 -974 975 976 -977 -978 979 980 981 -982 983 -984 985 986 -987 988 -989 990 -991 -992 -993 -994 -995 -996 997 -998 999 -1000 -1001 -1002 -1003 1004 -1005 1006 1007 1008 1009 -1010 1011 -1012 1013 1014 1015 1016 -1017 1018 -1019 1020 -1021 -1022 -1023 1024 1025 -1026 1027 1028 -1029 1030 1031 -1032 1033 -1034 -1035 1036 1037 1038 -1039 1040 1041 -1042 1043 -1044 1045 1046 1047 1048 -1049 -1050 -1051 1052 -1053 1054 1055 1056 -1057 -1058 1059 -1060 -1061 -1062 1063 1064 -1065 1066 1067 -1068 1069 1070 -1071 1072 1073 1074 -1075 1076 -1077 -1078 -1079 1080 1081 1082 -1083 1084 -1085 1086 1087 1088 -1089 -1090 -1091 -1092 1093 1094 -1095 1096 1097 1098 -1099 -1100 -1101 -1102 1103 -1104 -1105 1106 1107 1108 1109 1110 1111 -1112 1113 1114 -1115 -1116 1117 1118 1119 -1120 -1121 -1122 -1123 1124 1125 1126 -1127 -1128 -1129 1130 -1131 1132 -1133 1134 1135 -1136 1137 -1138 1139 -1140 1141 -1142 1143 1144 -1145 1146 -1147 1148 -1149 1150 -1151 -1152 1153 -1154 -1155 -1156 1157 1158 1159 1160 1161 -1162 -1163 1164 -1165 1166 1167 1168 1169 -1170 
0.00/0.05	v 0 
0.00/0.05	c Done (mycputime is 0.000 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node71/watcher-310300-1172557626 -o ROOT/results/node71/solver-310300-1172557626 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310300-1172557626/FH /tmp/evaluation/310300-1172557626/instance-310300-1172557626.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.84 0.95 0.90 3/64 21461
/proc/meminfo: memFree=1876200/2055920 swapFree=4182996/4192956
[pid=21461] ppid=21459 vsize=244720 CPUtime=0
/proc/21461/stat : 21461 (FH) R 21459 21461 20721 0 -1 4194304 102 0 0 0 0 0 0 0 18 0 1 0 275720371 250593280 86 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134589751 0 0 4096 0 0 0 0 17 0 0 0
/proc/21461/statm: 61180 86 36 103 0 60684 0

Solver just ended. Dumping a history of the last processes samples

Child status: 10
Real time (s): 0.0581489
CPU time (s): 0.05599
CPU user time (s): 0.052991
CPU system time (s): 0.002999
CPU usage (%): 96.2872
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.052991
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 296
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 6

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node71 on Tue Feb 27 06:27:06 UTC 2007

IDJOB= 310300
IDBENCH= 20283
IDSOLVER= 117
FILE ID= node71/310300-1172557626

PBS_JOBID= 3971857

Free space on /tmp= 66551 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v1170/unif2p-p0.9-v1170-c4235-S30263233-06-SAT.cnf
COMMAND LINE= /tmp/evaluation/310300-1172557626/FH /tmp/evaluation/310300-1172557626/instance-310300-1172557626.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-310300-1172557626 -o ROOT/results/node71/solver-310300-1172557626 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310300-1172557626/FH /tmp/evaluation/310300-1172557626/instance-310300-1172557626.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  19bf4df3850e38181cad28d3dbbeced7

RANDOM SEED= 468348097

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node71.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.266
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.266
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1876672 kB
Buffers:         25272 kB
Cached:         107484 kB
SwapCached:       3788 kB
Active:          58968 kB
Inactive:        83296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1876672 kB
SwapTotal:     4192956 kB
SwapFree:      4182996 kB
Dirty:            6176 kB
Writeback:           0 kB
Mapped:          15324 kB
Slab:            23008 kB
Committed_AS:   767836 kB
PageTables:       1448 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66551 MiB

End job on node71 on Tue Feb 27 06:27:06 UTC 2007