Trace number 310286

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
saps 2007-02-08SAT 0.282956 0.284132

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)

0.20/0.28	c 
0.20/0.28	c UBCSAT version 1.1.0rr
0.20/0.28	c 
0.20/0.28	c http://www.satlib.org/ubcsat
0.20/0.28	c 
0.20/0.28	c ubcsat -h for help
0.20/0.28	c 
0.20/0.28	c  -runs 1 
0.20/0.28	c  -cutoff 4294967295 
0.20/0.28	c  -timeout 0.000000 
0.20/0.28	c  -gtimeout 0.000000 
0.20/0.28	c  -noimprove 0 
0.20/0.28	c  -target 0 
0.20/0.28	c  -wtarget 0.000000 
0.20/0.28	c  -seed 679726187 
0.20/0.28	c  -solve 0 
0.20/0.28	c  -find,-numsol 0 
0.20/0.28	c  -findunique 0 
0.20/0.28	c  -srestart 0 
0.20/0.28	c  -prestart 0.000000 
0.20/0.28	c  -drestart 0 
0.20/0.28	c 
0.20/0.28	c  -alpha 1.300000 
0.20/0.28	c  -rho 0.800000 
0.20/0.28	c  -ps 0.050000 
0.20/0.28	c  -wp 0.010000 
0.20/0.28	c  -sapsthresh -0.100000 
0.20/0.28	c 
0.20/0.28	s SATISFIABLE
0.20/0.28	v  -1 2 -3 4 5 -6 -7 8 9 -10
0.20/0.28	v  -11 -12 -13 14 15 16 -17 -18 19 20
0.20/0.28	v  21 -22 23 24 25 26 -27 28 -29 -30
0.20/0.28	v  -31 32 33 34 -35 36 -37 38 -39 -40
0.20/0.28	v  -41 -42 -43 -44 45 -46 -47 -48 49 -50
0.20/0.28	v  51 52 53 54 -55 -56 57 -58 -59 60
0.20/0.28	v  61 -62 63 -64 -65 -66 -67 -68 -69 -70
0.20/0.28	v  -71 -72 73 74 -75 -76 -77 -78 79 -80
0.20/0.28	v  81 82 -83 -84 85 -86 -87 -88 -89 90
0.20/0.28	v  91 -92 93 94 -95 -96 -97 -98 -99 -100
0.20/0.28	v  -101 -102 -103 -104 105 -106 -107 -108 -109 110
0.20/0.28	v  -111 -112 -113 -114 115 116 117 118 119 120
0.20/0.28	v  121 122 123 124 125 -126 127 -128 -129 -130
0.20/0.28	v  131 -132 133 -134 135 -136 -137 138 139 -140
0.20/0.28	v  -141 142 143 -144 145 146 -147 -148 149 150
0.20/0.28	v  -151 152 153 154 -155 -156 -157 158 159 -160
0.20/0.28	v  -161 -162 163 164 165 166 167 168 169 170
0.20/0.28	v  171 -172 -173 -174 175 176 -177 -178 179 -180
0.20/0.28	v  -181 -182 -183 184 185 186 -187 188 -189 -190
0.20/0.28	v  -191 -192 -193 194 -195 -196 -197 -198 199 -200
0.20/0.28	v  201 -202 203 204 -205 -206 207 208 209 -210
0.20/0.28	v  211 212 -213 214 -215 216 -217 -218 219 -220
0.20/0.28	v  221 -222 -223 -224 -225 226 -227 228 229 230
0.20/0.28	v  -231 -232 -233 -234 -235 -236 -237 238 -239 240
0.20/0.28	v  241 242 -243 244 245 246 247 248 -249 250
0.20/0.28	v  251 -252 253 -254 255 -256 257 258 259 260
0.20/0.28	v  261 262 -263 264 -265 -266 -267 -268 269 270
0.20/0.28	v  271 -272 -273 -274 275 276 -277 278 -279 280
0.20/0.28	v  -281 -282 283 -284 285 286 -287 -288 -289 -290
0.20/0.28	v  -291 292 293 294 295 -296 297 298 -299 300
0.20/0.28	v  -301 302 303 -304 -305 -306 -307 308 309 -310
0.20/0.28	v  -311 -312 -313 314 -315 316 -317 318 -319 -320
0.20/0.28	v  321 322 -323 324 -325 326 -327 -328 -329 -330
0.20/0.28	v  331 332 333 334 335 336 337 338 -339 340
0.20/0.28	v  -341 342 -343 -344 345 346 347 348 -349 350
0.20/0.28	v  351 -352 -353 354 -355 356 -357 -358 359 360
0.20/0.28	v  -361 -362 363 -364 -365 -366 367 -368 -369 370
0.20/0.28	v  -371 372 373 374 -375 376 -377 -378 -379 380
0.20/0.28	v  381 -382 383 384 385 -386 387 388 389 -390
0.20/0.28	v  -391 -392 393 394 395 -396 -397 -398 -399 400
0.20/0.28	v  -401 -402 -403 404 -405 406 407 -408 -409 -410
0.20/0.28	v  -411 -412 -413 414 -415 -416 417 418 419 420
0.20/0.28	v  -421 -422 -423 -424 -425 -426 -427 -428 -429 -430
0.20/0.28	v  431 432 433 434 -435 -436 -437 -438 -439 -440
0.20/0.28	v  441 442 -443 -444 -445 446 -447 448 -449 -450
0.20/0.28	v  451 452 -453 -454 455 456 -457 458 -459 -460
0.20/0.28	v  461 -462 463 464 -465 466 -467 -468 469 470
0.20/0.28	v  471 -472 -473 -474 -475 -476 -477 478 -479 -480
0.20/0.28	v  -481 -482 -483 484 485 486 487 -488 489 490
0.20/0.28	v  -491 -492 493 494 -495 -496 -497 498 -499 -500
0.20/0.28	v  501 -502 503 504 -505 506 507 508 -509 510
0.20/0.28	v  511 -512 513 -514 515 -516 -517 -518 519 520
0.20/0.28	v  -521 522 -523 -524 525 -526 -527 528 -529 -530
0.20/0.28	v  531 -532 -533 -534 -535 -536 537 538 539 540
0.20/0.28	v  -541 -542 -543 544 545 -546 547 548 -549 -550
0.20/0.28	v  551 -552 -553 -554 -555 -556 557 -558 -559 560
0.20/0.28	v  561 562 563 -564 565 566 -567 568 569 570
0.20/0.28	v  571 572 573 574 -575 576 577 -578 -579 580
0.20/0.28	v  -581 -582 -583 584 585 586 587 -588 589 -590
0.20/0.28	v  -591 592 -593 -594 -595 596 -597 -598 599 -600
0.20/0.28	v  601 602 -603 604 605 606 -607 608 -609 610
0.20/0.28	v  -611 612 613 -614 -615 616 -617 618 619 -620
0.20/0.28	v  621 622 623 624 625 626 -627 -628 629 -630
0.20/0.28	v  -631 -632 633 -634 -635 -636 637 638 639 640
0.20/0.28	v  -641 -642 -643 644 -645 -646 647 648 -649 -650
0.20/0.28	v  -651 652 653 -654 -655 -656 657 -658 -659 -660
0.20/0.28	v  -661 -662 663 -664 -665 666 667 668 669 670
0.20/0.28	v  671 -672 673 -674 -675 676 -677 -678 -679 -680
0.20/0.28	v  681 682 -683 -684 -685 -686 -687 688 -689 690
0.20/0.28	v  691 -692 693 -694 -695 696 697 -698 -699 -700
0.20/0.28	v  701 702 -703 704 -705 -706 -707 -708 709 710
0.20/0.28	v  711 -712 -713 714 -715 716 717 718 719 720
0.20/0.28	v  -721 -722 -723 -724 725 726 -727 -728 729 730
0.20/0.28	v  -731 732 -733 734 735 -736 -737 -738 -739 740
0.20/0.28	v  -741 -742 743 744 -745 -746 747 748 -749 -750
0.20/0.28	v  751 752 753 754 755 756 757 -758 759 760
0.20/0.28	v  -761 762 -763 -764 765 -766 -767 -768 -769 770
0.20/0.28	v  -771 -772 -773 -774 -775 -776 777 778 -779 780
0.20/0.28	v  781 782 -783 784 -785 786 787 -788 789 790
0.20/0.28	v  -791 792 793 -794 795 -796 797 798 -799 800
0.20/0.28	v  801 -802 -803 -804 -805 806 -807 808 -809 -810
0.20/0.28	v  -811 812 813 -814 815 -816 817 818 -819 -820
0.20/0.28	v  821 822 823 -824 825 -826 -827 828 829 -830
0.20/0.28	v  831 832 -833 -834 835 836 837 -838 -839 840
0.20/0.28	v  841 842 843 844 845 846 -847 848 849 -850
0.20/0.28	v  851 -852 853 854 -855 856 -857 858 -859 -860
0.20/0.28	v  861 862 863 -864 -865 866 -867 868 -869 -870
0.20/0.28	v  871 872 873 -874 -875 876 -877 878 -879 880
0.20/0.28	v  -881 -882 883 -884 -885 -886 887 888 -889 890
0.20/0.28	v  891 892 893 894 895 -896 897 898 -899 900
0.20/0.28	v  -901 -902 -903 904 -905 -906 907 -908 909 -910
0.20/0.28	v  -911 -912 -913 -914 915 916 -917 -918 919 -920
0.20/0.28	v  -921 922 923 -924 -925 -926 -927 -928 929 930
0.20/0.28	v  931 932 -933 934 -935 -936 -937 938 -939 940
0.20/0.28	v  941 -942 -943 944 -945 946 947 -948 949 950
0.20/0.28	v  -951 -952 953 954 955 -956 -957 958 -959 960
0.20/0.28	v  961 -962 963 964 -965 966 967 968 -969 970
0.20/0.28	v  -971 -972 -973 974 975 976 -977 978 -979 980
0.20/0.28	v  981 -982 -983 984 985 986 987 988 -989 990
0.20/0.28	v  991 -992 -993 994 -995 -996 997 -998 999 1000
0.20/0.28	v  -1001 1002 -1003 1004 1005 -1006 1007 -1008 -1009 -1010
0.20/0.28	v  1011 -1012 1013 1014 1015 1016 -1017 -1018 1019 -1020
0.20/0.28	v  -1021 -1022 -1023 -1024 -1025 1026 -1027 1028 -1029 -1030
0.20/0.28	v  1031 -1032 1033 -1034 1035 1036 1037 1038 1039 1040
0.20/0.28	v  1041 -1042 1043 1044 1045 1046 1047 -1048 1049 1050
0.20/0.28	v  -1051 1052 1053 1054 1055 -1056 -1057 -1058 1059 1060
0.20/0.28	v  -1061 -1062 -1063 1064 -1065 -1066 -1067 -1068 -1069 1070
0.20/0.28	v  -1071 1072 1073 1074 -1075 1076 -1077 -1078 -1079 1080
0.20/0.28	v  1081 1082 -1083 1084 -1085 -1086 1087 1088 -1089 1090
0.20/0.28	v  -1091 -1092 -1093 -1094 -1095 1096 1097 1098 1099 -1100
0.20/0.28	v  -1101 -1102 1103 -1104 -1105 -1106 1107 1108 1109 -1110
0.20/0.28	v  -1111 -1112 1113 1114 -1115 -1116 -1117 -1118 1119 -1120
0.20/0.28	v  -1121 -1122 -1123 1124 1125 1126 -1127 -1128 -1129 -1130
0.20/0.28	v  -1131 1132 1133 -1134 1135 -1136 1137 -1138 1139 -1140
0.20/0.28	v  1141 1142 1143 -1144 -1145 1146 -1147 1148 -1149 1150
0.20/0.28	v  -1151 -1152 1153 -1154 -1155 -1156 1157 1158 1159 1160
0.20/0.28	v  -1161 -1162 1163 1164 1165 1166 1167 -1168 1169 -1170
0.20/0.28	v  0

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/node69/watcher-310286-1172557511 -o ROOT/results/node69/solver-310286-1172557511 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310286-1172557511/saps /tmp/evaluation/310286-1172557511/instance-310286-1172557511.cnf 679726187 

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: 0.92 0.98 0.99 3/64 25329
/proc/meminfo: memFree=1828136/2055920 swapFree=4183956/4192956
[pid=25329] ppid=25327 vsize=5160 CPUtime=0
/proc/25329/stat : 25329 (saps) R 25327 25329 23343 0 -1 4194304 152 0 0 0 0 0 0 0 18 0 1 0 275708818 5283840 137 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134899325 0 0 4096 0 0 0 0 17 1 0 0
/proc/25329/statm: 1290 137 73 159 0 1129 0

[startup+0.10744 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 25329
/proc/meminfo: memFree=1828136/2055920 swapFree=4183956/4192956
[pid=25329] ppid=25327 vsize=5156 CPUtime=0.1
/proc/25329/stat : 25329 (saps) R 25327 25329 23343 0 -1 4194304 216 0 0 0 10 0 0 0 18 0 1 0 275708818 5279744 200 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134549537 0 0 4096 0 0 0 0 17 1 0 0
/proc/25329/statm: 1289 200 78 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

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

[startup+0.209456 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 25329
/proc/meminfo: memFree=1828136/2055920 swapFree=4183956/4192956
[pid=25329] ppid=25327 vsize=5156 CPUtime=0.2
/proc/25329/stat : 25329 (saps) R 25327 25329 23343 0 -1 4194304 216 0 0 0 20 0 0 0 19 0 1 0 275708818 5279744 200 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134549528 0 0 4096 0 0 0 0 17 1 0 0
/proc/25329/statm: 1289 200 78 159 0 1128 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.284132
CPU time (s): 0.282956
CPU user time (s): 0.280957
CPU system time (s): 0.001999
CPU usage (%): 99.5861
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.280957
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 234
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= 10
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node69 on Tue Feb 27 06:25:11 UTC 2007

IDJOB= 310286
IDBENCH= 20283
IDSOLVER= 103
FILE ID= node69/310286-1172557511

PBS_JOBID= 3971854

Free space on /tmp= 66559 MiB

SOLVER NAME= saps 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/310286-1172557511/saps /tmp/evaluation/310286-1172557511/instance-310286-1172557511.cnf  679726187   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node69/watcher-310286-1172557511 -o ROOT/results/node69/solver-310286-1172557511 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310286-1172557511/saps /tmp/evaluation/310286-1172557511/instance-310286-1172557511.cnf  679726187   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  19bf4df3850e38181cad28d3dbbeced7

RANDOM SEED= 679726187

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node69.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		: 3000.261
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		: 3000.261
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:       1828608 kB
Buffers:         32260 kB
Cached:         147004 kB
SwapCached:       3248 kB
Active:          90592 kB
Inactive:        99100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1828608 kB
SwapTotal:     4192956 kB
SwapFree:      4183956 kB
Dirty:            2216 kB
Writeback:           0 kB
Mapped:          15780 kB
Slab:            23612 kB
Committed_AS:   706440 kB
PageTables:       1472 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= 66559 MiB

End job on node69 on Tue Feb 27 06:25:11 UTC 2007