Trace number 1775451

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
precosat 236UNSAT 10.5464 10.5496

General information on the benchmark

Namemanol-pipe-g7nidw.cnf
MD5SUMa0303c742e981cc0d4711ad3ac66f146
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.65699
Satisfiable
(Un)Satisfiability was proved
Number of variables75496
Number of clauses222379
Sum of the clauses size518883
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2148252
Number of clauses of size 374126
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 PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.00	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.00	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.00	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.00	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.00	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.00	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.00	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.00	c
0.00/0.00	c reading HOME/instance-1775451-1241203003.cnf
0.00/0.00	c found header 'p cnf 75496 222379'
0.39/0.41	c finished parsing
0.39/0.41	c
0.39/0.41	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.39/0.41	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.39/0.41	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.39/0.41	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.39/0.41	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.39/0.41	c --random=1 --spread=2000 --seed=0 --skip=25
0.39/0.41	c
0.39/0.41	c sizeof     vars[0] = 16   alignment = 0       1 MB
0.39/0.41	c sizeof     orgs[0] =  8   alignment = 0       1 MB
0.39/0.41	c sizeof     occs[0] =  8   alignment = 0       1 MB
0.39/0.41	c sizeof iirfs[0..1] =  8   alignment = 0       1 MB
0.39/0.41	c
0.39/0.41	c starting search after 0.4 seconds
0.39/0.41	c no decision limit
0.39/0.43	c
0.39/0.43	c       original/binary      fixed     eliminated      learned       agility
0.39/0.43	c   seconds        variables     equivalent    conflicts       height       MB
0.39/0.43	c
0.39/0.43	c *    0.4   222378   75495      1     0      0       0      0    0.0   0   20
3.19/3.25	c s    3.2    81542   12895   2694  1757  58150       0      0    0.0   0   14
3.19/3.25	c l    3.2    81542   12895   2694  1757  58150       0  70094    0.0   0   14
3.19/3.30	c R    3.3    81584   12895   2694  1757  58150     100     99  426.9   7   15
3.29/3.34	c R    3.3    81586   12895   2694  1757  58150     200    199  456.7  13   15
3.39/3.43	c R    3.4    81628   12894   2694  1758  58150     805    804  412.4  16   15
3.39/3.46	c B    3.5    81637   12894   2694  1758  58150    1004   1002  386.3  11   15
3.49/3.60	c B    3.6    81743   12894   2694  1758  58150    2004   1995  361.8  11   15
3.59/3.68	c R    3.7    81744   12894   2694  1758  58150    2413   2404  385.2  17   15
5.19/5.24	c B    5.2    88396   12743   2785  1818  58150    8005   7985  365.6  10   17
5.69/5.77	c R    5.8    91813   12743   2785  1818  58150   11454  11412  367.2  15   18
6.78/6.85	c s    6.9    82764   12704   2797  1845  58150   16247  16174  361.3  15   17
6.78/6.85	c -    6.9    82764   12704   2797  1845  58150   16247  67992  361.3  15   17
8.18/8.28	c B    8.3    85504   12538   2874  1934  58150   24015  23923  330.5  19   20
10.48/10.54	c 0   10.5   113661   11715   3467  2164  58150   33044  32880  304.6  17   23
10.48/10.54	c
10.48/10.54	s UNSATISFIABLE
10.48/10.54	c
10.48/10.54	c 33044 conflicts, 261863 decisions, 61 random
10.48/10.54	c 18 iterations, 144 restarts, 10 skipped
10.48/10.54	c 0 enlarged, 241 shrunken, 323 rescored, 16 rebiased
10.48/10.54	c 2 simplifications, 0 reductions
10.48/10.54	c
10.48/10.54	c vars: 3467 fixed, 2164 equiv, 58150 elim, 2297 merged
10.48/10.54	c elim: 971893 resolutions, 1 phases, 1 rounds
10.48/10.54	c sbst: 93% substituted, 4.1% nots, 82.8% ands, 8.6% xors, 4.5% ites
10.48/10.54	c arty: 2.07 and 2.00 xor average arity
10.48/10.54	c prbe: 164166 probed, 6 phases, 6 rounds
10.48/10.54	c prbe: 139 failed, 1025 lifted, 1009 merged
10.48/10.54	c sccs: 28 non trivial, 0 fixed, 114 merged
10.48/10.54	c hash: 38 units, 1174 merged
10.48/10.54	c mins: 941471 learned, 15% deleted, 108 strong, 25 depth
10.48/10.54	c subs: 217 forward, 312 backward, 36024 doms
10.48/10.54	c strs: 271 forward, 80 backward
10.48/10.54	c doms: 40380 dominators, 33859 high, 118 low
10.48/10.54	c prps: 7092013 propagations, 0.67 megaprops
10.48/10.54	c
10.48/10.54	c 10.5 seconds, 27 MB max, 14 MB recycled

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-1775451-1241203003/watcher-1775451-1241203003 -o /tmp/evaluation-result-1775451-1241203003/solver-1775451-1241203003 -C 10000 -W 12000 -M 1800 HOME/precosat HOME/instance-1775451-1241203003.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 25722
/proc/meminfo: memFree=1234544/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=3744 CPUtime=0
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 702 0 0 0 0 0 0 0 18 0 1 0 148333683 3833856 687 1992294400 134512640 135151029 4294956240 18446744073709551615 134534335 0 0 4096 0 0 0 0 17 1 0 0
/proc/25722/statm: 936 688 59 155 0 779 0

[startup+0.0564611 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 25722
/proc/meminfo: memFree=1234544/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=9340 CPUtime=0.05
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 2210 0 0 0 4 1 0 0 18 0 1 0 148333683 9564160 2162 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 2335 2163 63 155 0 2178 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 9340

[startup+0.101465 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 25722
/proc/meminfo: memFree=1234544/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=11444 CPUtime=0.09
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 2798 0 0 0 8 1 0 0 18 0 1 0 148333683 11718656 2685 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 2861 2686 63 155 0 2704 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11444

[startup+0.301485 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 25722
/proc/meminfo: memFree=1234544/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=19612 CPUtime=0.29
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 4986 0 0 0 27 2 0 0 19 0 1 0 148333683 20082688 4744 1992294400 134512640 135151029 4294956240 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 4903 4744 63 155 0 4746 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 19612

[startup+0.701525 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 25722
/proc/meminfo: memFree=1234544/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=27556 CPUtime=0.69
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 7196 0 0 0 66 3 0 0 22 0 1 0 148333683 28217344 6696 1992294400 134512640 135151029 4294956240 18446744073709551615 134531828 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 6889 6696 79 155 0 6732 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 27556

[startup+1.50161 s]
/proc/loadavg: 0.86 0.97 0.99 2/65 25723
/proc/meminfo: memFree=1208680/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=33368 CPUtime=1.49
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 10674 0 0 0 144 5 0 0 25 0 1 0 148333683 34168832 8081 1992294400 134512640 135151029 4294956240 18446744073709551615 134519050 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 8342 8081 79 155 0 8185 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33368

[startup+3.10177 s]
/proc/loadavg: 0.86 0.97 0.99 2/65 25723
/proc/meminfo: memFree=1201448/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=32732 CPUtime=3.09
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 11219 0 0 0 304 5 0 0 25 0 1 0 148333683 33517568 7740 1992294400 134512640 135151029 4294956240 18446744073709551615 134678810 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 8183 7740 79 155 0 8026 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 32732

[startup+6.30109 s]
/proc/loadavg: 0.87 0.97 0.99 2/65 25723
/proc/meminfo: memFree=1205416/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=30680 CPUtime=6.29
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 11224 0 0 0 624 5 0 0 25 0 1 0 148333683 31416320 7232 1992294400 134512640 135151029 4294956240 18446744073709551615 134580711 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 7670 7232 79 155 0 7513 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 30680

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

[startup+7.90125 s]
/proc/loadavg: 0.87 0.97 0.99 2/65 25723
/proc/meminfo: memFree=1205416/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=30680 CPUtime=7.88
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 11519 0 0 0 783 5 0 0 25 0 1 0 148333683 31416320 7232 1992294400 134512640 135151029 4294956240 18446744073709551615 134574075 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 7670 7232 79 155 0 7513 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 30680

[startup+9.50142 s]
/proc/loadavg: 0.87 0.97 0.99 2/65 25723
/proc/meminfo: memFree=1205416/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=30680 CPUtime=9.48
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 11519 0 0 0 943 5 0 0 25 0 1 0 148333683 31416320 7232 1992294400 134512640 135151029 4294956240 18446744073709551615 134580711 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 7670 7232 79 155 0 7513 0
Current children cumulated CPU time (s) 9.48
Current children cumulated vsize (KiB) 30680

[startup+10.3015 s]
/proc/loadavg: 0.87 0.97 0.99 2/65 25723
/proc/meminfo: memFree=1205416/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=30680 CPUtime=10.28
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 11519 0 0 0 1023 5 0 0 25 0 1 0 148333683 31416320 7232 1992294400 134512640 135151029 4294956240 18446744073709551615 134554575 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 7670 7232 79 155 0 7513 0
Current children cumulated CPU time (s) 10.28
Current children cumulated vsize (KiB) 30680

[startup+10.5015 s]
/proc/loadavg: 0.87 0.97 0.99 2/65 25723
/proc/meminfo: memFree=1205416/2055920 swapFree=4181312/4192956
[pid=25722] ppid=25720 vsize=30680 CPUtime=10.48
/proc/25722/stat : 25722 (precosat) R 25720 25722 25685 0 -1 4194304 11519 0 0 0 1043 5 0 0 25 0 1 0 148333683 31416320 7232 1992294400 134512640 135151029 4294956240 18446744073709551615 134554756 0 0 4096 17442 0 0 0 17 1 0 0
/proc/25722/statm: 7670 7232 79 155 0 7513 0
Current children cumulated CPU time (s) 10.48
Current children cumulated vsize (KiB) 30680

Child status: 20
Real time (s): 10.5496
CPU time (s): 10.5464
CPU user time (s): 10.4814
CPU system time (s): 0.06499
CPU usage (%): 99.9697
Max. virtual memory (cumulated for all children) (KiB): 36276

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.4814
system time used= 0.06499
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11520
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= 12

runsolver used 0.016997 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node17 at 2009-05-01 20:36:43
IDJOB=1775451
IDBENCH=71767
IDSOLVER=607
FILE ID=node17/1775451-1241203003
PBS_JOBID= 9224682
Free space on /tmp= 66352 MiB

SOLVER NAME= precosat 236
BENCH NAME= SAT_RACE06/manol-pipe-g7nidw.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1775451-1241203003/watcher-1775451-1241203003 -o /tmp/evaluation-result-1775451-1241203003/solver-1775451-1241203003 -C 10000 -W 12000 -M 1800  HOME/precosat HOME/instance-1775451-1241203003.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= a0303c742e981cc0d4711ad3ac66f146
RANDOM SEED=705056746

node17.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		: 3000.234
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		: 3000.234
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:       1235024 kB
Buffers:         77488 kB
Cached:         639604 kB
SwapCached:       5476 kB
Active:          28992 kB
Inactive:       695936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1235024 kB
SwapTotal:     4192956 kB
SwapFree:      4181312 kB
Dirty:            4460 kB
Writeback:           0 kB
Mapped:          13476 kB
Slab:            81976 kB
Committed_AS:   667480 kB
PageTables:       1452 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= 66352 MiB
End job on node17 at 2009-05-01 20:36:54