Trace number 310983

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 0.886864 0.887619

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1679085272-10-SAT.cnf
MD5SUM9f390533642969c6fa22110646f07992
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.154976
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.82/0.88	c 
0.82/0.88	c UBCSAT version 1.1.0rr
0.82/0.88	c 
0.82/0.88	c http://www.satlib.org/ubcsat
0.82/0.88	c 
0.82/0.88	c ubcsat -h for help
0.82/0.88	c 
0.82/0.88	c  -runs 1 
0.82/0.88	c  -cutoff 4294967295 
0.82/0.88	c  -timeout 0.000000 
0.82/0.88	c  -gtimeout 0.000000 
0.82/0.88	c  -noimprove 0 
0.82/0.88	c  -target 0 
0.82/0.88	c  -wtarget 0.000000 
0.82/0.88	c  -seed 392368372 
0.82/0.88	c  -solve 0 
0.82/0.88	c  -find,-numsol 0 
0.82/0.88	c  -findunique 0 
0.82/0.88	c  -srestart 0 
0.82/0.88	c  -prestart 0.000000 
0.82/0.88	c  -drestart 0 
0.82/0.88	c 
0.82/0.88	c  -alpha 1.300000 
0.82/0.88	c  -rho 0.800000 
0.82/0.88	c  -ps 0.050000 
0.82/0.88	c  -wp 0.010000 
0.82/0.88	c  -sapsthresh -0.100000 
0.82/0.88	c 
0.82/0.88	s SATISFIABLE
0.82/0.88	v  -1 2 -3 4 -5 6 7 8 -9 -10
0.82/0.88	v  -11 12 13 -14 -15 16 -17 18 19 20
0.82/0.88	v  21 22 23 24 25 -26 27 28 29 -30
0.82/0.88	v  -31 -32 33 -34 35 -36 -37 -38 39 40
0.82/0.88	v  41 42 43 44 45 -46 47 -48 -49 -50
0.82/0.88	v  51 -52 -53 54 55 -56 -57 58 59 -60
0.82/0.88	v  61 -62 63 64 -65 66 -67 -68 69 -70
0.82/0.88	v  -71 -72 73 -74 -75 -76 -77 78 -79 80
0.82/0.88	v  81 -82 83 -84 85 -86 -87 88 -89 90
0.82/0.88	v  91 92 93 -94 95 -96 97 98 -99 100
0.82/0.88	v  101 -102 103 -104 -105 106 -107 -108 109 110
0.82/0.88	v  111 112 113 114 115 -116 117 -118 119 -120
0.82/0.88	v  121 -122 -123 124 -125 -126 -127 128 -129 130
0.82/0.88	v  -131 -132 133 -134 -135 136 -137 138 -139 140
0.82/0.88	v  -141 -142 143 -144 145 146 147 148 -149 150
0.82/0.88	v  151 152 153 -154 155 -156 -157 158 -159 160
0.82/0.88	v  161 162 -163 -164 165 166 167 168 169 -170
0.82/0.88	v  171 -172 173 174 -175 176 -177 178 -179 -180
0.82/0.88	v  -181 -182 -183 184 185 -186 187 -188 189 -190
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0.82/0.88	v  201 -202 -203 -204 -205 -206 207 -208 209 -210
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0.82/0.88	v  -221 222 223 224 -225 226 -227 228 -229 230
0.82/0.88	v  -231 -232 233 234 -235 -236 -237 -238 -239 240
0.82/0.88	v  241 242 -243 -244 -245 -246 -247 -248 249 250
0.82/0.88	v  -251 -252 253 254 -255 256 -257 258 -259 260
0.82/0.88	v  261 -262 -263 -264 -265 266 267 268 -269 -270
0.82/0.88	v  -271 272 273 274 275 -276 -277 278 279 280
0.82/0.88	v  -281 282 283 -284 -285 -286 287 -288 289 290
0.82/0.88	v  -291 292 293 294 -295 -296 -297 298 -299 -300
0.82/0.88	v  -301 -302 -303 304 -305 306 307 308 -309 310
0.82/0.88	v  311 -312 -313 314 315 316 317 -318 319 -320
0.82/0.88	v  321 322 -323 324 325 -326 -327 -328 -329 -330
0.82/0.88	v  331 -332 -333 334 -335 336 -337 338 339 340
0.82/0.88	v  341 -342 -343 344 -345 -346 -347 348 349 350
0.82/0.88	v  -351 352 -353 -354 355 356 357 -358 359 -360
0.82/0.88	v  361 -362 -363 364 365 -366 367 368 -369 -370
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0.82/0.88	v  541 542 -543 -544 -545 546 547 548 549 -550
0.82/0.88	v  -551 -552 -553 554 555 -556 557 558 559 -560
0.82/0.88	v  -561 562 -563 -564 -565 566 -567 -568 569 570
0.82/0.88	v  571 572 -573 -574 -575 -576 577 578 579 580
0.82/0.88	v  -581 582 -583 -584 -585 -586 587 -588 589 -590
0.82/0.88	v  -591 -592 593 -594 595 596 -597 598 -599 600
0.82/0.88	v  601 602 -603 604 605 -606 607 -608 -609 -610
0.82/0.88	v  -611 -612 613 614 -615 -616 -617 618 619 -620
0.82/0.88	v  621 -622 623 624 -625 -626 627 -628 -629 -630
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0.82/0.88	v  -641 642 643 644 -645 -646 -647 -648 -649 650
0.82/0.88	v  -651 -652 653 654 -655 656 -657 -658 -659 -660
0.82/0.88	v  -661 -662 663 664 -665 666 -667 -668 -669 670
0.82/0.88	v  -671 672 673 -674 -675 -676 677 -678 -679 680
0.82/0.88	v  681 -682 683 684 -685 -686 687 -688 -689 -690
0.82/0.88	v  691 692 -693 -694 695 -696 -697 -698 699 -700
0.82/0.88	v  701 702 703 704 705 -706 707 -708 -709 -710
0.82/0.88	v  711 712 713 -714 715 716 -717 718 719 -720
0.82/0.88	v  721 -722 723 724 -725 -726 -727 728 729 730
0.82/0.88	v  -731 732 733 734 -735 -736 -737 738 739 740
0.82/0.88	v  -741 -742 743 744 -745 746 -747 748 749 -750
0.82/0.88	v  -751 752 753 754 -755 756 757 -758 759 -760
0.82/0.88	v  -761 -762 763 764 765 -766 767 768 -769 -770
0.82/0.88	v  -771 772 773 -774 775 776 777 -778 -779 -780
0.82/0.88	v  -781 782 783 -784 -785 786 787 788 789 -790
0.82/0.88	v  -791 -792 793 794 -795 -796 797 798 -799 800
0.82/0.88	v  -801 -802 -803 804 805 806 -807 -808 -809 810
0.82/0.88	v  -811 812 -813 814 -815 816 817 -818 -819 -820
0.82/0.88	v  821 822 -823 824 -825 826 -827 -828 -829 -830
0.82/0.88	v  -831 -832 -833 834 835 -836 -837 838 -839 -840
0.82/0.88	v  841 842 -843 -844 -845 846 847 848 -849 -850
0.82/0.88	v  -851 852 853 854 855 -856 -857 -858 -859 -860
0.82/0.88	v  -861 -862 -863 864 -865 866 -867 -868 -869 -870
0.82/0.88	v  871 -872 -873 -874 -875 876 877 878 879 880
0.82/0.88	v  881 -882 -883 884 885 886 887 888 -889 -890
0.82/0.88	v  -891 -892 893 -894 -895 -896 -897 -898 899 900
0.82/0.88	v  -901 902 -903 904 905 906 -907 908 -909 910
0.82/0.88	v  911 912 913 -914 915 916 917 918 919 -920
0.82/0.88	v  921 922 -923 924 -925 926 927 -928 929 -930
0.82/0.88	v  931 -932 933 934 935 936 -937 938 -939 940
0.82/0.88	v  941 -942 -943 -944 945 946 -947 -948 -949 -950
0.82/0.88	v  -951 -952 953 -954 955 -956 957 958 -959 960
0.82/0.88	v  -961 962 -963 -964 965 966 967 968 -969 -970
0.82/0.88	v  971 972 -973 974 975 976 -977 -978 979 980
0.82/0.88	v  -981 -982 -983 984 985 -986 987 -988 -989 -990
0.82/0.88	v  -991 -992 -993 994 -995 996 997 -998 -999 1000
0.82/0.88	v  1001 1002 -1003 1004 1005 1006 -1007 1008 1009 1010
0.82/0.88	v  -1011 1012 1013 -1014 1015 -1016 1017 -1018 1019 1020
0.82/0.88	v  -1021 1022 1023 -1024 1025 1026 1027 1028 1029 -1030
0.82/0.88	v  1031 1032 -1033 -1034 -1035 1036 1037 1038 -1039 -1040
0.82/0.88	v  1041 -1042 1043 1044 -1045 1046 1047 1048 1049 -1050
0.82/0.88	v  1051 -1052 -1053 -1054 -1055 -1056 1057 -1058 1059 -1060
0.82/0.88	v  -1061 1062 1063 -1064 -1065 -1066 -1067 1068 -1069 1070
0.82/0.88	v  -1071 -1072 -1073 1074 1075 -1076 1077 1078 -1079 1080
0.82/0.88	v  -1081 -1082 1083 -1084 1085 1086 -1087 1088 1089 1090
0.82/0.88	v  -1091 1092 1093 -1094 -1095 1096 1097 -1098 -1099 1100
0.82/0.88	v  -1101 1102 -1103 -1104 -1105 1106 -1107 -1108 1109 1110
0.82/0.88	v  1111 -1112 1113 1114 1115 -1116 -1117 -1118 -1119 -1120
0.82/0.88	v  1121 -1122 1123 -1124 -1125 1126 -1127 -1128 -1129 1130
0.82/0.88	v  -1131 -1132 1133 1134 1135 1136 1137 1138 1139 1140
0.82/0.88	v  1141 1142 -1143 1144 1145 -1146 -1147 -1148 1149 -1150
0.82/0.88	v  1151 -1152 -1153 -1154 -1155 -1156 -1157 -1158 1159 1160
0.82/0.88	v  -1161 1162 -1163 -1164 1165 -1166 1167 -1168 -1169 -1170
0.82/0.88	v  1171 1172 -1173 1174 1175 1176 -1177 -1178 1179 -1180
0.82/0.88	v  -1181 -1182 -1183 1184 -1185 1186 1187 1188 1189 -1190
0.82/0.88	v  -1191 1192 1193 -1194 -1195 -1196 -1197 1198 -1199 -1200
0.82/0.88	v  1201 1202 1203 -1204 -1205 -1206 1207 1208 -1209 1210
0.82/0.88	v  1211 -1212 1213 1214 -1215 1216 1217 -1218 -1219 -1220
0.82/0.88	v  1221 -1222 1223 1224 1225 -1226 -1227 -1228 1229 1230
0.82/0.88	v  1231 -1232 1233 1234 -1235 -1236 -1237 1238 -1239 -1240
0.82/0.88	v  1241 -1242 1243 1244 1245 -1246 -1247 1248 -1249 1250
0.82/0.88	v  1251 -1252 1253 -1254 1255 1256 1257 1258 -1259 -1260
0.82/0.88	v  -1261 1262 1263 1264 -1265 1266 1267 1268 -1269 1270
0.82/0.88	v  1271 -1272 1273 -1274 -1275 -1276 1277 -1278 1279 1280
0.82/0.88	v  1281 -1282 1283 -1284 1285 -1286 1287 -1288 -1289 1290
0.82/0.88	v  -1291 1292 1293 1294 -1295 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/node1/watcher-310983-1172563540 -o ROOT/results/node1/solver-310983-1172563540 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310983-1172563540/saps /tmp/evaluation/310983-1172563540/instance-310983-1172563540.cnf 392368372 

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: 1.00 1.00 1.00 3/77 20143
/proc/meminfo: memFree=1710136/2055920 swapFree=4156676/4192956
[pid=20143] ppid=20141 vsize=5160 CPUtime=0
/proc/20143/stat : 20143 (saps) R 20141 20143 19285 0 -1 4194304 153 0 0 0 0 0 0 0 18 0 1 0 276309056 5283840 138 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134692457 0 0 4096 0 0 0 0 17 1 0 0
/proc/20143/statm: 1290 138 72 159 0 1129 0

[startup+0.107269 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20143
/proc/meminfo: memFree=1710136/2055920 swapFree=4156676/4192956
[pid=20143] ppid=20141 vsize=5156 CPUtime=0.1
/proc/20143/stat : 20143 (saps) R 20141 20143 19285 0 -1 4194304 213 0 0 0 10 0 0 0 18 0 1 0 276309056 5279744 197 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134550703 0 0 4096 0 0 0 0 17 1 0 0
/proc/20143/statm: 1289 197 77 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.519316 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20143
/proc/meminfo: memFree=1710136/2055920 swapFree=4156676/4192956
[pid=20143] ppid=20141 vsize=5156 CPUtime=0.51
/proc/20143/stat : 20143 (saps) R 20141 20143 19285 0 -1 4194304 213 0 0 0 51 0 0 0 22 0 1 0 276309056 5279744 197 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134549641 0 0 4096 0 0 0 0 17 1 0 0
/proc/20143/statm: 1289 197 77 159 0 1128 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5156

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

[startup+0.826352 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20143
/proc/meminfo: memFree=1710136/2055920 swapFree=4156676/4192956
[pid=20143] ppid=20141 vsize=5156 CPUtime=0.82
/proc/20143/stat : 20143 (saps) R 20141 20143 19285 0 -1 4194304 213 0 0 0 82 0 0 0 25 0 1 0 276309056 5279744 197 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134714620 0 0 4096 0 0 0 0 17 1 0 0
/proc/20143/statm: 1289 197 77 159 0 1128 0
Current children cumulated CPU time (s) 0.82
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.887619
CPU time (s): 0.886864
CPU user time (s): 0.883865
CPU system time (s): 0.002999
CPU usage (%): 99.9149
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.883865
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= 231
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= 18

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node1 on Tue Feb 27 08:05:40 UTC 2007

IDJOB= 310983
IDBENCH= 20302
IDSOLVER= 103
FILE ID= node1/310983-1172563540

PBS_JOBID= 3971669

Free space on /tmp= 66556 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1679085272-10-SAT.cnf
COMMAND LINE= /tmp/evaluation/310983-1172563540/saps /tmp/evaluation/310983-1172563540/instance-310983-1172563540.cnf  392368372   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-310983-1172563540 -o ROOT/results/node1/solver-310983-1172563540 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310983-1172563540/saps /tmp/evaluation/310983-1172563540/instance-310983-1172563540.cnf  392368372   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  9f390533642969c6fa22110646f07992

RANDOM SEED= 392368372

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node1.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		: 3000.230
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		: 3000.230
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:       1710608 kB
Buffers:         47372 kB
Cached:         203944 kB
SwapCached:      19188 kB
Active:         207908 kB
Inactive:        72024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1710608 kB
SwapTotal:     4192956 kB
SwapFree:      4156676 kB
Dirty:            2348 kB
Writeback:           0 kB
Mapped:          29968 kB
Slab:            50940 kB
Committed_AS:   847320 kB
PageTables:       1740 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= 66556 MiB

End job on node1 on Tue Feb 27 08:05:41 UTC 2007