Trace number 370023

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
MXC 2007-02-08UNSAT 46.288 46.3207

General information on the benchmark

Namecrafted/spence/
medium/s73-100.cnf
MD5SUMe3db629d913d76ea47534f9df94ead1b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.1624
Satisfiable
(Un)Satisfiability was proved
Number of variables73
Number of clauses156
Sum of the clauses size468
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3156
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

46.28/46.31	c MXC attempting /tmp/evaluation/370023-1177550779/instance-370023-1177550779.cnf
46.28/46.31	c 0 assignments made, starting to guess now
46.28/46.31	c ===================================[MXC]=====================================
46.28/46.31	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
46.28/46.31	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
46.28/46.31	c =============================================================================
46.28/46.31	c |         0 |     156      468 |    1000       0       0     nan |  0.000 % |
46.28/46.31	c |       101 |     156      468 |    1100     101    1321    13.1 |  0.000 % |
46.28/46.31	c |       252 |     156      468 |    1210     252    3210    12.7 |  0.000 % |
46.28/46.31	c |       477 |     156      468 |    1331     477    5996    12.6 |  0.000 % |
46.28/46.31	c |       815 |     156      468 |    1464     815   10448    12.8 |  0.000 % |
46.28/46.31	c |      1321 |     156      468 |    1610    1321   17972    13.6 |  0.000 % |
46.28/46.31	c |      2080 |     156      468 |    1771    1275   19140    15.0 |  0.000 % |
46.28/46.31	c |      3219 |     156      468 |    1948    1528   22391    14.7 |  0.000 % |
46.28/46.31	c |      4927 |     156      468 |    2143    1287   16718    13.0 |  0.000 % |
46.28/46.31	c |      7489 |     156      468 |    2357    1705   21583    12.7 |  0.000 % |
46.28/46.31	c |     11334 |     156      468 |    2593    2014   25150    12.5 |  0.000 % |
46.28/46.31	c |     17100 |     156      468 |    2853    2593   32682    12.6 |  0.000 % |
46.28/46.31	c |     25750 |     156      468 |    3138    2682   31718    11.8 |  0.000 % |
46.28/46.31	c |     38724 |     156      468 |    3452    3108   35211    11.3 |  0.000 % |
46.28/46.31	c |     58185 |     156      468 |    3797    1868   25509    13.7 |  0.000 % |
46.28/46.31	c |     87378 |     156      468 |    4177    2587   33807    13.1 |  0.000 % |
46.28/46.31	c |    131167 |     156      468 |    4594    2538   31757    12.5 |  0.000 % |
46.28/46.31	c |    196851 |     156      468 |    5054    3932   42013    10.7 |  0.000 % |
46.28/46.31	c |    295379 |     156      468 |    5559    3947   45834    11.6 |  0.000 % |
46.28/46.31	c |    443173 |     156      468 |    6115    4501   52834    11.7 |  0.000 % |
46.28/46.31	c |    664857 |     156      468 |    6727    3072   37809    12.3 |  0.000 % |
46.28/46.31	c |    997383 |     147      441 |    7400    6038   62679    10.4 |  1.370 % |
46.28/46.31	c 46.290s elapsed
46.28/46.31	c restarts: 21
46.28/46.31	c decisions: 1345662
46.28/46.31	c propagations: 22643937
46.28/46.31	c conflicts: 1113967
46.28/46.31	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node38/watcher-370023-1177550779 -o ROOT/results/node38/solver-370023-1177550779 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370023-1177550779/mxc /tmp/evaluation/370023-1177550779/instance-370023-1177550779.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.94 0.99 0.94 3/77 27200
/proc/meminfo: memFree=1749344/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=932 CPUtime=0
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 96 0 0 0 0 0 0 0 18 0 1 0 187244551 954368 81 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 233 81 59 122 0 107 0

[startup+0.0850291 s]
/proc/loadavg: 0.94 0.99 0.94 3/77 27200
/proc/meminfo: memFree=1749344/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=1072 CPUtime=0.08
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 155 0 0 0 8 0 0 0 18 0 1 0 187244551 1097728 138 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519238 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 268 138 67 122 0 142 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1072

[startup+0.101031 s]
/proc/loadavg: 0.94 0.99 0.94 3/77 27200
/proc/meminfo: memFree=1749344/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=1072 CPUtime=0.09
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 158 0 0 0 9 0 0 0 18 0 1 0 187244551 1097728 141 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519261 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 268 141 67 122 0 142 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1072

[startup+0.30107 s]
/proc/loadavg: 0.94 0.99 0.94 3/77 27200
/proc/meminfo: memFree=1749344/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=1204 CPUtime=0.29
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 181 0 0 0 29 0 0 0 19 0 1 0 187244551 1232896 164 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519890 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 301 164 67 122 0 175 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1204

[startup+0.701146 s]
/proc/loadavg: 0.94 0.99 0.94 3/77 27200
/proc/meminfo: memFree=1749344/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=1324 CPUtime=0.69
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 208 0 0 0 69 0 0 0 23 0 1 0 187244551 1355776 191 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134529837 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 331 191 67 122 0 205 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1324

[startup+1.5013 s]
/proc/loadavg: 0.94 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1748696/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=1444 CPUtime=1.49
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 249 0 0 0 149 0 0 0 25 0 1 0 187244551 1478656 232 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519280 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 361 232 67 122 0 235 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1444

[startup+3.10161 s]
/proc/loadavg: 0.94 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1748376/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=1684 CPUtime=3.09
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 287 0 0 0 309 0 0 0 25 0 1 0 187244551 1724416 270 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530551 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 421 270 67 122 0 295 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1684

[startup+6.30122 s]
/proc/loadavg: 0.95 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1748120/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=1800 CPUtime=6.29
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 339 0 0 0 629 0 0 0 25 0 1 0 187244551 1843200 322 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 450 322 67 122 0 324 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1800

[startup+12.7015 s]
/proc/loadavg: 0.95 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1747864/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=2032 CPUtime=12.69
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 380 0 0 0 1269 0 0 0 25 0 1 0 187244551 2080768 363 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 508 363 67 122 0 382 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2032

[startup+25.5019 s]
/proc/loadavg: 0.96 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1747544/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=2252 CPUtime=25.48
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 449 0 0 0 2548 0 0 0 25 0 1 0 187244551 2306048 432 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531283 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 563 432 67 122 0 437 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 2252

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

[startup+38.3014 s]
/proc/loadavg: 0.97 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1747288/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=2472 CPUtime=38.28
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 512 0 0 0 3828 0 0 0 25 0 1 0 187244551 2531328 495 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519206 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 618 495 67 122 0 492 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 2472

[startup+41.502 s]
/proc/loadavg: 0.97 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1747224/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=2588 CPUtime=41.48
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 521 0 0 0 4148 0 0 0 25 0 1 0 187244551 2650112 504 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134538011 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 647 504 67 122 0 521 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 2588

[startup+44.7016 s]
/proc/loadavg: 0.97 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1747224/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=2588 CPUtime=44.68
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 525 0 0 0 4468 0 0 0 25 0 1 0 187244551 2650112 508 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519218 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 647 508 67 122 0 521 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 2588

[startup+45.5018 s]
/proc/loadavg: 0.97 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1747224/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=2588 CPUtime=45.48
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 529 0 0 0 4548 0 0 0 25 0 1 0 187244551 2650112 512 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134528115 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 647 512 67 122 0 521 0
Current children cumulated CPU time (s) 45.48
Current children cumulated vsize (KiB) 2588

[startup+45.9018 s]
/proc/loadavg: 0.97 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1747224/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=2588 CPUtime=45.88
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 529 0 0 0 4588 0 0 0 25 0 1 0 187244551 2650112 512 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519261 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 647 512 67 122 0 521 0
Current children cumulated CPU time (s) 45.88
Current children cumulated vsize (KiB) 2588

[startup+46.3019 s]
/proc/loadavg: 0.97 0.99 0.94 2/78 27201
/proc/meminfo: memFree=1747224/2055920 swapFree=4159740/4192956
[pid=27200] ppid=27198 vsize=2588 CPUtime=46.28
/proc/27200/stat : 27200 (mxc) R 27198 27200 25852 0 -1 4194304 533 0 0 0 4628 0 0 0 25 0 1 0 187244551 2650112 516 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/27200/statm: 647 516 67 122 0 521 0
Current children cumulated CPU time (s) 46.28
Current children cumulated vsize (KiB) 2588

Child status: 20
Real time (s): 46.3207
CPU time (s): 46.288
CPU user time (s): 46.286
CPU system time (s): 0.001999
CPU usage (%): 99.9294
Max. virtual memory (cumulated for all children) (KiB): 2588

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 46.286
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= 534
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= 1008

runsolver used 0.031995 second user time and 0.111982 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Thu Apr 26 01:26:19 UTC 2007

IDJOB= 370023
IDBENCH= 20438
IDSOLVER= 181
FILE ID= node38/370023-1177550779

PBS_JOBID= 4696561

Free space on /tmp= 66260 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s73-100.cnf
COMMAND LINE= /tmp/evaluation/370023-1177550779/mxc /tmp/evaluation/370023-1177550779/instance-370023-1177550779.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-370023-1177550779 -o ROOT/results/node38/solver-370023-1177550779 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370023-1177550779/mxc /tmp/evaluation/370023-1177550779/instance-370023-1177550779.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  e3db629d913d76ea47534f9df94ead1b

RANDOM SEED= 62367387

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.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		: 3000.263
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		: 3000.263
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:       1749816 kB
Buffers:         36556 kB
Cached:         194636 kB
SwapCached:       3136 kB
Active:         152768 kB
Inactive:       103412 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1749816 kB
SwapTotal:     4192956 kB
SwapFree:      4159740 kB
Dirty:             768 kB
Writeback:           0 kB
Mapped:          33160 kB
Slab:            35232 kB
Committed_AS:  1727344 kB
PageTables:       2064 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= 66260 MiB

End job on node38 on Thu Apr 26 01:27:06 UTC 2007