Trace number 1555025

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
picosat 913UNSAT 20.01 20.0154

General information on the benchmark

NameAPPLICATIONS/bitverif/
icbrt/icbrt1_32.cnf
MD5SUM157e258753171ede0eac48b41cfa7b1d
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.2104
Satisfiable
(Un)Satisfiability was proved
Number of variables11309
Number of clauses33833
Sum of the clauses size78941
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 222554
Number of clauses of size 311277
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c PicoSAT SAT Solver Version 913
0.00/0.00	c Copyright (c) 2006 - 2009 Armin Biere JKU Linz
0.00/0.00	c gcc -Wall -Wextra -m32 -static -DNDEBUG -O3 -fomit-frame-pointer -finline-limit=1000000
0.00/0.00	c
0.00/0.00	c parsing HOME/instance-1555025-1238736414.cnf
0.00/0.00	c parsed header 'p cnf 11309 33833'
0.29/0.39	c initialized 11309 variables
0.29/0.39	c found 33833 non trivial clauses
0.29/0.39	c
0.29/0.39	c random number generator seed 0
0.29/0.39	c 
0.29/0.39	c  seconds     variables   original    learned     agility
0.29/0.39	c         level        used      conflicts    limit          MB
0.29/0.39	c 
0.29/0.39	c s   0.4   0.0 10583  29.0 10662   172     1     0   0.0   1.4 
0.39/0.45	c 
0.39/0.45	c initial reduction limit 5638 clauses
0.39/0.45	c 
0.39/0.45	c +   0.5  16.4 10583  88.8 10662   272   101  6201  28.0   1.4 
0.39/0.45	c N   0.5  16.4 10583  88.8 10662   272   101  6201  28.0   1.4 
0.49/0.50	c +   0.5  16.5 10583  95.3 10662   422   251  6821  24.0   1.5 
0.49/0.56	c N   0.6  16.1 10583  98.4 10662   577   406  6821  35.1   1.5 
0.59/0.60	c +   0.6  15.4 10583  98.5 10662   647   476  7503  29.3   1.5 
0.69/0.76	c +   0.8  14.3 10583  98.8 10662   984   813  8253  29.7   1.6 
0.89/0.94	c N   0.9  14.0 10583  98.8 10662  1382  1211  8253  27.7   1.7 
0.89/0.97	c +   1.0  13.9 10583  98.9 10662  1489  1318  9078  35.6   1.7 
1.19/1.23	c +   1.2  14.0 10583  99.1 10662  2246  2075  9985  19.8   1.9 
1.59/1.69	c +   1.7  16.6 10583  99.8 10662  3381  3210 10983  31.6   2.1 
1.69/1.71	c R   1.7  16.6 10583  99.8 10662  3403  3232 10983  19.7   2.1 
2.49/2.51	c +   2.5  16.8 10583  99.8 10662  5083  4912 12081  21.6   2.4 
3.69/3.76	c +   3.8  17.3 10583  99.8 10662  7636  7459 13289  15.0   2.7 
3.99/4.02	c N   4.0  17.2 10583  99.8 10662  8217  8040 13289  23.6   2.9 
5.69/5.78	c +   5.8  16.9 10583  99.9 10662 11465 11288 14617  31.5   3.4 
9.38/9.42	c +   9.4  16.4 10583  99.9 10662 17208  9701 16078  35.7   2.9 
10.78/10.84	c N  10.8  16.2 10583  99.9 10662 19439 11932 16078  29.0   3.3 
15.19/15.29	c +  15.3  15.5 10583  99.9 10662 25822 10264 17685  13.2   2.9 
16.79/16.81	c s  16.8  15.3  9779  99.9  9885 27922  4725 17685  33.4   2.0 
16.79/16.84	c N  16.8  15.3  9779  99.9  9885 27953  4756 17685  25.6   2.0 
16.79/16.84	c 
16.79/16.84	c  seconds     variables   original    learned     agility
16.79/16.84	c         level        used      conflicts    limit          MB
16.79/16.84	c 
16.89/16.99	c N  17.0  15.3  9779  99.9  9885 28254  5057 17685  38.7   2.1 
17.49/17.50	c N  17.5  15.3  9779  99.9  9885 29055  5856 17685  27.9   2.2 
18.59/18.60	c N  18.6  15.2  9779 100.0  9885 31060  7856 17685  23.8   2.4 
19.09/19.12	c s  19.1  15.1  8978 100.0  9069 31834  5944 17685  29.9   2.2 
19.09/19.16	c N  19.2  15.0  8978 100.0  9069 31934  6043 17685  35.0   2.2 
19.29/19.34	c N  19.3  15.0  8978 100.0  9069 32234  6342 17685  40.6   2.2 
19.69/19.79	c s  19.8  15.0  7446 100.0  7495 32991  3388 17685  31.8   1.9 
19.79/19.85	c N  19.9  15.0  7446 100.0  7495 33091  3487 17685  34.1   1.9 
19.99/20.01	c 0  20.0  14.9  3124 100.0  7495 33364  3741 17685  26.3   2.0 
19.99/20.01	c 
19.99/20.01	c  seconds     variables   original    learned     agility
19.99/20.01	c         level        used      conflicts    limit          MB
19.99/20.01	c 
19.99/20.01	s UNSATISFIABLE
19.99/20.01	c
19.99/20.01	c 6 iterations
19.99/20.01	c 18 restarts
19.99/20.01	c 230 failed literals
19.99/20.01	c 33364 conflicts
19.99/20.01	c 55104 decisions
19.99/20.01	c 8185 fixed variables
19.99/20.01	c 1146887 learned literals
19.99/20.01	c 70.8% deleted literals
19.99/20.01	c 50167624 propagations
19.99/20.01	c 100.0% variables used
19.99/20.01	c 20.0 seconds in library
19.99/20.01	c 2.5 megaprops/second
19.99/20.01	c 4 simplifications
19.99/20.01	c 2 reductions
19.99/20.01	c 4.8 MB recycled
19.99/20.01	c 4.0 MB maximally allocated
19.99/20.01	c 20.0 seconds total run time

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1555025-1238736414/watcher-1555025-1238736414 -o /tmp/evaluation-result-1555025-1238736414/solver-1555025-1238736414 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1555025-1238736414.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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 3/64 7070
/proc/meminfo: memFree=868912/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=1488 CPUtime=0
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 277 0 0 0 0 0 0 0 18 0 1 0 1146306915 1523712 262 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 372 262 56 152 0 218 0

[startup+0.094682 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 7070
/proc/meminfo: memFree=868912/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=2428 CPUtime=0.09
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 477 0 0 0 9 0 0 0 18 0 1 0 1146306915 2486272 462 1992294400 134512640 135137933 4294956224 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 607 462 61 152 0 453 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2428

[startup+0.101681 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 7070
/proc/meminfo: memFree=868912/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=2428 CPUtime=0.09
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 477 0 0 0 9 0 0 0 18 0 1 0 1146306915 2486272 462 1992294400 134512640 135137933 4294956224 18446744073709551615 134548654 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 607 462 61 152 0 453 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2428

[startup+0.301698 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 7070
/proc/meminfo: memFree=868912/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=2428 CPUtime=0.29
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 477 0 0 0 29 0 0 0 19 0 1 0 1146306915 2486272 462 1992294400 134512640 135137933 4294956224 18446744073709551615 134548661 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 607 462 61 152 0 453 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2428

[startup+0.701734 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 7070
/proc/meminfo: memFree=868912/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=2560 CPUtime=0.69
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 536 0 0 0 69 0 0 0 22 0 1 0 1146306915 2621440 521 1992294400 134512640 135137933 4294956224 18446744073709551615 134551430 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 640 521 69 152 0 486 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2560

[startup+1.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=866856/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=2956 CPUtime=1.49
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 644 0 0 0 149 0 0 0 25 0 1 0 1146306915 3026944 629 1992294400 134512640 135137933 4294956224 18446744073709551615 134522705 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 739 629 69 152 0 585 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2956

[startup+3.10194 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=866280/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=3616 CPUtime=3.09
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 795 0 0 0 309 0 0 0 25 0 1 0 1146306915 3702784 780 1992294400 134512640 135137933 4294956224 18446744073709551615 134547582 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 904 780 69 152 0 750 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3616

[startup+6.30122 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=865136/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=4568 CPUtime=6.29
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 1036 0 0 0 629 0 0 0 25 0 1 0 1146306915 4677632 1021 1992294400 134512640 135137933 4294956224 18446744073709551615 134548659 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 1142 1021 69 152 0 988 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4568

[startup+12.7018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=864376/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=5112 CPUtime=12.68
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 1159 0 0 0 1268 0 0 0 25 0 1 0 1146306915 5234688 1144 1992294400 134512640 135137933 4294956224 18446744073709551615 134553601 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 1278 1144 69 152 0 1124 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 5112

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

[startup+15.901 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=864312/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=5244 CPUtime=15.89
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 1177 0 0 0 1588 1 0 0 25 0 1 0 1146306915 5369856 1162 1992294400 134512640 135137933 4294956224 18446744073709551615 134548908 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 1311 1162 69 152 0 1157 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 5244

[startup+17.5012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=864312/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=5244 CPUtime=17.49
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 1177 0 0 0 1748 1 0 0 25 0 1 0 1146306915 5369856 1162 1992294400 134512640 135137933 4294956224 18446744073709551615 134569841 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 1311 1162 69 152 0 1157 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 5244

[startup+19.1023 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=864312/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=5244 CPUtime=19.09
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 1177 0 0 0 1908 1 0 0 25 0 1 0 1146306915 5369856 1162 1992294400 134512640 135137933 4294956224 18446744073709551615 134548844 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 1311 1162 69 152 0 1157 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 5244

[startup+19.5014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=864312/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=5244 CPUtime=19.49
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 1177 0 0 0 1948 1 0 0 25 0 1 0 1146306915 5369856 1162 1992294400 134512640 135137933 4294956224 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 1311 1162 69 152 0 1157 0
Current children cumulated CPU time (s) 19.49
Current children cumulated vsize (KiB) 5244

[startup+19.9014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=864312/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=5244 CPUtime=19.89
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 1177 0 0 0 1988 1 0 0 25 0 1 0 1146306915 5369856 1162 1992294400 134512640 135137933 4294956224 18446744073709551615 134548742 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 1311 1162 69 152 0 1157 0
Current children cumulated CPU time (s) 19.89
Current children cumulated vsize (KiB) 5244

[startup+20.0014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 7071
/proc/meminfo: memFree=864312/2055920 swapFree=4167280/4192956
[pid=7070] ppid=7068 vsize=5244 CPUtime=19.99
/proc/7070/stat : 7070 (picosat) R 7068 7070 6726 0 -1 4194304 1177 0 0 0 1998 1 0 0 25 0 1 0 1146306915 5369856 1162 1992294400 134512640 135137933 4294956224 18446744073709551615 134548913 0 0 4096 0 0 0 0 17 1 0 0
/proc/7070/statm: 1311 1162 69 152 0 1157 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (KiB) 5244

Child status: 20
Real time (s): 20.0154
CPU time (s): 20.01
CPU user time (s): 19.998
CPU system time (s): 0.011998
CPU usage (%): 99.9728
Max. virtual memory (cumulated for all children) (KiB): 5244

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.998
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1179
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= 2
involuntary context switches= 26

runsolver used 0.024996 second user time and 0.045993 second system time

The end

Launcher Data 

Begin job on node31 at 2009-04-03 07:26:54
IDJOB=1555025
IDBENCH=70792
IDSOLVER=506
FILE ID=node31/1555025-1238736414
PBS_JOBID= 9085376
Free space on /tmp= 66416 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/APPLICATIONS/bitverif/icbrt/icbrt1_32.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1555025-1238736414/watcher-1555025-1238736414 -o /tmp/evaluation-result-1555025-1238736414/solver-1555025-1238736414 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1555025-1238736414.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 157e258753171ede0eac48b41cfa7b1d
RANDOM SEED=1091775893

node31.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.214
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		: 3000.214
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:        869392 kB
Buffers:        126012 kB
Cached:         942108 kB
SwapCached:      18724 kB
Active:         275124 kB
Inactive:       813220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        869392 kB
SwapTotal:     4192956 kB
SwapFree:      4167280 kB
Dirty:            1396 kB
Writeback:           0 kB
Mapped:          17412 kB
Slab:            83952 kB
Committed_AS:  3279936 kB
PageTables:       1472 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66416 MiB
End job on node31 at 2009-04-03 07:27:14