Trace number 1724341

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
MXC 2009-03-10UNSAT 3.9204 3.92179

General information on the benchmark

Namemanol-pipe-c9.cnf
MD5SUM7f47eb2c5986b40772da3e38cf0759b1
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.54061
Satisfiable
(Un)Satisfiability was proved
Number of variables15214
Number of clauses45082
Sum of the clauses size105190
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 230054
Number of clauses of size 315027
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

3.89/3.91	c starting MXC with:
3.89/3.91	c cnf_path = HOME/instance-1724341-1240694549.cnf
3.89/3.91	c restart_strategy = auto
3.89/3.91	c sign_strategy = cached
3.89/3.91	c use_preprocessing = -1
3.89/3.91	c output_implicant = 1
3.89/3.91	c timeout_seconds = 0
3.89/3.91	c running SatELite... done
3.89/3.91	c 12193 vars eliminated
3.89/3.91	c received 3 units and 18768 clauses from SatELite
3.89/3.91	c 12195 assignments made, starting to guess now
3.89/3.91	c ===================================[MXC]=====================================
3.89/3.91	c | Conflicts |                Clause Statistics                   |   Vars   |
3.89/3.91	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
3.89/3.91	c =============================================================================
3.89/3.91	c |         0 |       0    3325    15443        0        0     nan |    15214 |
3.89/3.91	c |       100 |       0    3344    15187       97     1050     8.5 |     3007 |
3.89/3.91	c |       210 |       0    3346    15187      205     1105    10.6 |     3007 |
3.89/3.91	c |       441 |       0    3349    15187      433     1220    11.6 |     3007 |
3.89/3.91	c |       805 |       0    3356    15187      790     1402    13.7 |     3007 |
3.89/3.91	c |      1315 |       0    3359    15187     1297     1657    14.9 |     3007 |
3.89/3.91	c |      1986 |       0    3363    15187     1964     1993    15.7 |     3007 |
3.89/3.91	c |      2834 |       0    3364    15187     1811     2417    30.9 |     3007 |
3.89/3.91	c |      3876 |       0    3404    15043     2846     2938    28.5 |     3002 |
3.89/3.91	c |      5132 |       0    3209    10495     2570     3566    22.1 |     2469 |
3.89/3.91	c |      6623 |       0    3235    10442     4028     4311    23.5 |     2464 |
3.89/3.91	c |      8373 |       0    3242    10442     3484     5186    23.4 |     2464 |
3.89/3.91	c |     10408 |       0    3244    10442     5517     6204    24.3 |     2464 |
3.89/3.91	c |     12756 |       0    3249    10442     4421     7378    24.3 |     2464 |
3.89/3.91	c |     15449 |       0    3257    10442     7106     8724    23.7 |     2464 |
3.89/3.91	c |     18521 |       0    3262    10442    10173    10260    24.5 |     2464 |
3.89/3.91	c |     22010 |       0    3264    10442     8491    12005    23.6 |     2464 |
3.89/3.91	c |     25958 |       0    3266    10442    12437    12912    24.7 |     2464 |
3.89/3.91	c |     30411 |       0    3270    10442    10400    13405    22.6 |     2464 |
3.89/3.91	c |     35419 |       0    3278    10442     8532    13905    19.0 |     2464 |
3.89/3.91	c |     41038 |       0    3285    10442    14144    14405    20.4 |     2464 |
3.89/3.91	c |     42538 |       0    3310    10442     8403    14572    18.9 |     2221 |
3.89/3.91	c ----- stats for thread 0 -----
3.89/3.91	c restarts: 177
3.89/3.91	c decisions: 96657
3.89/3.91	c propagations: 4989235
3.89/3.91	c conflicts: 42538
3.89/3.91	c 3.918s elapsed
3.89/3.91	s UNSATISFIABLE

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-1724341-1240694549/watcher-1724341-1240694549 -o /tmp/evaluation-result-1724341-1240694549/solver-1724341-1240694549 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1724341-1240694549.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: 0.99 0.98 1.00 3/64 5779
/proc/meminfo: memFree=1736512/2055920 swapFree=4192812/4192956
[pid=5779] ppid=5777 vsize=3392 CPUtime=0
/proc/5779/stat : 5779 (mxc-sat09) R 5777 5779 5527 0 -1 4194304 669 0 0 0 0 0 0 0 20 0 1 0 97482928 3473408 655 1992294400 134512640 135192793 4294956208 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/5779/statm: 848 661 53 166 0 679 0

[startup+0.036208 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5779
/proc/meminfo: memFree=1736512/2055920 swapFree=4192812/4192956
[pid=5779] ppid=5777 vsize=6648 CPUtime=0.02
/proc/5779/stat : 5779 (mxc-sat09) R 5777 5779 5527 0 -1 4194304 1440 0 0 0 2 0 0 0 20 0 1 0 97482928 6807552 1424 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/5779/statm: 1662 1424 54 166 0 1493 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 6648

[startup+0.101215 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5779
/proc/meminfo: memFree=1736512/2055920 swapFree=4192812/4192956
[pid=5779] ppid=5777 vsize=8620 CPUtime=0.09
/proc/5779/stat : 5779 (mxc-sat09) R 5777 5779 5527 0 -1 4194304 2025 0 0 0 9 0 0 0 20 0 1 0 97482928 8826880 1841 1992294400 134512640 135192793 4294956208 18446744073709551615 134750359 0 0 4096 0 0 0 0 17 1 0 0
/proc/5779/statm: 2155 1842 56 166 0 1986 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8620

[startup+0.301237 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5779
/proc/meminfo: memFree=1736512/2055920 swapFree=4192812/4192956
[pid=5779] ppid=5777 vsize=11304 CPUtime=0.29
/proc/5779/stat : 5779 (mxc-sat09) R 5777 5779 5527 0 -1 4194304 2995 0 0 0 28 1 0 0 22 0 1 0 97482928 11575296 2625 1992294400 134512640 135192793 4294956208 18446744073709551615 134534332 0 0 4096 0 0 0 0 17 1 0 0
/proc/5779/statm: 2826 2625 72 166 0 2657 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11304

[startup+0.701283 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 5779
/proc/meminfo: memFree=1736512/2055920 swapFree=4192812/4192956
[pid=5779] ppid=5777 vsize=11964 CPUtime=0.69
/proc/5779/stat : 5779 (mxc-sat09) R 5777 5779 5527 0 -1 4194304 3185 0 0 0 68 1 0 0 25 0 1 0 97482928 12251136 2815 1992294400 134512640 135192793 4294956208 18446744073709551615 134533186 0 0 4096 0 0 0 0 17 1 0 0
/proc/5779/statm: 2991 2815 73 166 0 2822 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11964

[startup+1.50138 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 5780
/proc/meminfo: memFree=1725496/2055920 swapFree=4192812/4192956
[pid=5779] ppid=5777 vsize=12520 CPUtime=1.49
/proc/5779/stat : 5779 (mxc-sat09) R 5777 5779 5527 0 -1 4194304 3313 0 0 0 148 1 0 0 25 0 1 0 97482928 12820480 2943 1992294400 134512640 135192793 4294956208 18446744073709551615 134548137 0 0 4096 0 0 0 0 17 1 0 0
/proc/5779/statm: 3130 2943 73 166 0 2961 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12520

[startup+3.10257 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 5780
/proc/meminfo: memFree=1724088/2055920 swapFree=4192812/4192956
[pid=5779] ppid=5777 vsize=14104 CPUtime=3.09
/proc/5779/stat : 5779 (mxc-sat09) R 5777 5779 5527 0 -1 4194304 3700 0 0 0 308 1 0 0 25 0 1 0 97482928 14442496 3330 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/5779/statm: 3526 3330 73 166 0 3357 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 14104

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

[startup+3.50161 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 5780
/proc/meminfo: memFree=1723256/2055920 swapFree=4192812/4192956
[pid=5779] ppid=5777 vsize=14104 CPUtime=3.49
/proc/5779/stat : 5779 (mxc-sat09) R 5777 5779 5527 0 -1 4194304 3707 0 0 0 348 1 0 0 25 0 1 0 97482928 14442496 3337 1992294400 134512640 135192793 4294956208 18446744073709551615 134552327 0 0 4096 0 0 0 0 17 1 0 0
/proc/5779/statm: 3526 3337 73 166 0 3357 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 14104

[startup+3.90166 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 5780
/proc/meminfo: memFree=1723256/2055920 swapFree=4192812/4192956
[pid=5779] ppid=5777 vsize=14236 CPUtime=3.89
/proc/5779/stat : 5779 (mxc-sat09) R 5777 5779 5527 0 -1 4194304 3746 0 0 0 388 1 0 0 25 0 1 0 97482928 14577664 3376 1992294400 134512640 135192793 4294956208 18446744073709551615 134552331 0 0 4096 0 0 0 0 17 1 0 0
/proc/5779/statm: 3559 3376 73 166 0 3390 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 14236

Child status: 20
Real time (s): 3.92179
CPU time (s): 3.9204
CPU user time (s): 3.89841
CPU system time (s): 0.021996
CPU usage (%): 99.9646
Max. virtual memory (cumulated for all children) (KiB): 14236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.89841
system time used= 0.021996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3749
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= 10

runsolver used 0.008998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node53 at 2009-04-25 23:22:29
IDJOB=1724341
IDBENCH=71771
IDSOLVER=504
FILE ID=node53/1724341-1240694549
PBS_JOBID= 9186712
Free space on /tmp= 66476 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT_RACE06/manol-pipe-c9.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1724341-1240694549/watcher-1724341-1240694549 -o /tmp/evaluation-result-1724341-1240694549/solver-1724341-1240694549 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1724341-1240694549.cnf

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

MD5SUM BENCH= 7f47eb2c5986b40772da3e38cf0759b1
RANDOM SEED=959250898

node53.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		: 3000.245
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		: 3000.245
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1736992 kB
Buffers:         30140 kB
Cached:         217372 kB
SwapCached:        144 kB
Active:         125356 kB
Inactive:       136228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1736992 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1364 kB
Writeback:           0 kB
Mapped:          23712 kB
Slab:            43428 kB
Committed_AS:   276904 kB
PageTables:       1380 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= 66476 MiB
End job on node53 at 2009-04-25 23:22:33