Trace number 1775467

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 4.15637 4.15838

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 benchmark2.45163
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 

4.08/4.15	c starting MXC with:
4.08/4.15	c cnf_path = HOME/instance-1775467-1241312322.cnf
4.08/4.15	c restart_strategy = auto
4.08/4.15	c sign_strategy = cached
4.08/4.15	c use_preprocessing = -1
4.08/4.15	c output_implicant = 1
4.08/4.15	c timeout_seconds = 0
4.08/4.15	c running SatELite... done
4.08/4.15	c 12193 vars eliminated
4.08/4.15	c received 3 units and 18768 clauses from SatELite
4.08/4.15	c 12195 assignments made, starting to guess now
4.08/4.15	c ===================================[MXC]=====================================
4.08/4.15	c | Conflicts |                Clause Statistics                   |   Vars   |
4.08/4.15	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
4.08/4.15	c =============================================================================
4.08/4.15	c |         0 |       0    3325    15443        0        0     nan |    15214 |
4.08/4.15	c |       100 |       0    3344    15187       97     1050     8.5 |     3007 |
4.08/4.15	c |       210 |       0    3346    15187      205     1105    10.6 |     3007 |
4.08/4.15	c |       441 |       0    3349    15187      433     1220    11.6 |     3007 |
4.08/4.15	c |       805 |       0    3356    15187      790     1402    13.7 |     3007 |
4.08/4.15	c |      1315 |       0    3359    15187     1297     1657    14.9 |     3007 |
4.08/4.15	c |      1986 |       0    3363    15187     1964     1993    15.7 |     3007 |
4.08/4.15	c |      2834 |       0    3364    15187     1811     2417    30.9 |     3007 |
4.08/4.15	c |      3876 |       0    3404    15043     2846     2938    28.5 |     3002 |
4.08/4.15	c |      5132 |       0    3209    10495     2570     3566    22.1 |     2469 |
4.08/4.15	c |      6623 |       0    3235    10442     4028     4311    23.5 |     2464 |
4.08/4.15	c |      8373 |       0    3242    10442     3484     5186    23.4 |     2464 |
4.08/4.15	c |     10408 |       0    3244    10442     5517     6204    24.3 |     2464 |
4.08/4.15	c |     12756 |       0    3249    10442     4421     7378    24.3 |     2464 |
4.08/4.15	c |     15449 |       0    3257    10442     7106     8724    23.7 |     2464 |
4.08/4.15	c |     18521 |       0    3262    10442    10173    10260    24.5 |     2464 |
4.08/4.15	c |     22010 |       0    3264    10442     8491    12005    23.6 |     2464 |
4.08/4.15	c |     25958 |       0    3266    10442    12437    12912    24.7 |     2464 |
4.08/4.15	c |     30411 |       0    3270    10442    10400    13405    22.6 |     2464 |
4.08/4.15	c |     35419 |       0    3278    10442     8532    13905    19.0 |     2464 |
4.08/4.15	c |     41038 |       0    3285    10442    14144    14405    20.4 |     2464 |
4.08/4.15	c |     42538 |       0    3310    10442     8403    14572    18.9 |     2221 |
4.08/4.15	c ----- stats for thread 0 -----
4.08/4.15	c restarts: 177
4.08/4.15	c decisions: 96657
4.08/4.15	c propagations: 4989235
4.08/4.15	c conflicts: 42538
4.08/4.15	c 4.154s elapsed
4.08/4.15	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-1775467-1241312322/watcher-1775467-1241312322 -o /tmp/evaluation-result-1775467-1241312322/solver-1775467-1241312322 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1775467-1241312322.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: 0.89 0.97 0.99 3/64 24837
/proc/meminfo: memFree=1906344/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=3236 CPUtime=0
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 654 0 0 0 0 0 0 0 18 0 1 0 159260226 3313664 640 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 809 646 53 166 0 640 0

[startup+0.104869 s]
/proc/loadavg: 0.89 0.97 0.99 3/64 24837
/proc/meminfo: memFree=1906344/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=8488 CPUtime=0.09
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 2002 0 0 0 9 0 0 0 18 0 1 0 159260226 8691712 1818 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 2122 1819 56 166 0 1953 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8488

[startup+0.201876 s]
/proc/loadavg: 0.89 0.97 0.99 3/64 24837
/proc/meminfo: memFree=1906344/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=10732 CPUtime=0.19
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 2627 0 0 0 19 0 0 0 18 0 1 0 159260226 10989568 2443 1992294400 134512640 135192793 4294956224 18446744073709551615 134573784 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 2683 2444 56 166 0 2514 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 10732

[startup+0.301885 s]
/proc/loadavg: 0.89 0.97 0.99 3/64 24837
/proc/meminfo: memFree=1906344/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=11172 CPUtime=0.29
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 2971 0 0 0 29 0 0 0 19 0 1 0 159260226 11440128 2601 1992294400 134512640 135192793 4294956224 18446744073709551615 134756614 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 2793 2601 72 166 0 2624 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11172

[startup+0.701923 s]
/proc/loadavg: 0.89 0.97 0.99 3/64 24837
/proc/meminfo: memFree=1906344/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=11964 CPUtime=0.69
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 3182 0 0 0 68 1 0 0 22 0 1 0 159260226 12251136 2812 1992294400 134512640 135192793 4294956224 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 2991 2812 73 166 0 2822 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11964

[startup+1.50199 s]
/proc/loadavg: 0.89 0.97 0.99 2/65 24838
/proc/meminfo: memFree=1895264/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=12520 CPUtime=1.49
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 3306 0 0 0 148 1 0 0 25 0 1 0 159260226 12820480 2936 1992294400 134512640 135192793 4294956224 18446744073709551615 134533194 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 3130 2936 73 166 0 2961 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12520

[startup+3.10114 s]
/proc/loadavg: 0.89 0.97 0.99 2/65 24838
/proc/meminfo: memFree=1893920/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=13972 CPUtime=3.08
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 3666 0 0 0 307 1 0 0 25 0 1 0 159260226 14307328 3296 1992294400 134512640 135192793 4294956224 18446744073709551615 134550695 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 3493 3296 73 166 0 3324 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 13972

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

[startup+3.20115 s]
/proc/loadavg: 0.89 0.97 0.99 2/65 24838
/proc/meminfo: memFree=1893920/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=13972 CPUtime=3.18
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 3674 0 0 0 317 1 0 0 25 0 1 0 159260226 14307328 3304 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 3493 3304 73 166 0 3324 0
Current children cumulated CPU time (s) 3.18
Current children cumulated vsize (KiB) 13972

[startup+3.60118 s]
/proc/loadavg: 0.89 0.97 0.99 2/65 24838
/proc/meminfo: memFree=1893152/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=14104 CPUtime=3.58
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 3702 0 0 0 357 1 0 0 25 0 1 0 159260226 14442496 3332 1992294400 134512640 135192793 4294956224 18446744073709551615 134533909 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 3526 3332 73 166 0 3357 0
Current children cumulated CPU time (s) 3.58
Current children cumulated vsize (KiB) 14104

[startup+4.00122 s]
/proc/loadavg: 0.89 0.97 0.99 2/65 24838
/proc/meminfo: memFree=1893152/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=14236 CPUtime=3.98
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 3744 0 0 0 397 1 0 0 25 0 1 0 159260226 14577664 3374 1992294400 134512640 135192793 4294956224 18446744073709551615 134745292 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 3559 3374 73 166 0 3390 0
Current children cumulated CPU time (s) 3.98
Current children cumulated vsize (KiB) 14236

[startup+4.10123 s]
/proc/loadavg: 0.89 0.97 0.99 2/65 24838
/proc/meminfo: memFree=1893152/2055920 swapFree=4191900/4192956
[pid=24837] ppid=24835 vsize=14236 CPUtime=4.08
/proc/24837/stat : 24837 (mxc-sat09) R 24835 24837 24773 0 -1 4194304 3746 0 0 0 407 1 0 0 25 0 1 0 159260226 14577664 3376 1992294400 134512640 135192793 4294956224 18446744073709551615 134534128 0 0 4096 0 0 0 0 17 1 0 0
/proc/24837/statm: 3559 3376 73 166 0 3390 0
Current children cumulated CPU time (s) 4.08
Current children cumulated vsize (KiB) 14236

Child status: 20
Real time (s): 4.15838
CPU time (s): 4.15637
CPU user time (s): 4.13437
CPU system time (s): 0.021996
CPU usage (%): 99.9516
Max. virtual memory (cumulated for all children) (KiB): 14236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.13437
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= 7

runsolver used 0.006998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node43 at 2009-05-03 02:58:42
IDJOB=1775467
IDBENCH=71771
IDSOLVER=613
FILE ID=node43/1775467-1241312322
PBS_JOBID= 9225269
Free space on /tmp= 66348 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-1775467-1241312322/watcher-1775467-1241312322 -o /tmp/evaluation-result-1775467-1241312322/solver-1775467-1241312322 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1775467-1241312322.cnf

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

MD5SUM BENCH= 7f47eb2c5986b40772da3e38cf0759b1
RANDOM SEED=2105176599

node43.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		: 3000.237
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		: 3000.237
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:       1906760 kB
Buffers:         21048 kB
Cached:          59000 kB
SwapCached:        260 kB
Active:          18156 kB
Inactive:        75152 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1906760 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            1672 kB
Writeback:           0 kB
Mapped:          21748 kB
Slab:            41788 kB
Committed_AS:   732144 kB
PageTables:       1444 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= 66348 MiB
End job on node43 at 2009-05-03 02:58:46