Trace number 1783557

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 2009-03-10SAT 4.31534 4.31669

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-ukn001.sat05-3841.reshuffled-07.cnf
MD5SUM74af041eb51b172e799baf4bb7eaa52f
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.47462
Satisfiable
(Un)Satisfiability was proved
Number of variables2737
Number of clauses18375
Sum of the clauses size129048
Maximum clause length13
Minimum clause length1
Number of clauses of size 149
Number of clauses of size 2491
Number of clauses of size 32419
Number of clauses of size 4526
Number of clauses of size 5691
Number of clauses of size over 514199

Solver Data 

4.29/4.31	c starting MXC with:
4.29/4.31	c cnf_path = HOME/instance-1783557-1241861797.cnf
4.29/4.31	c restart_strategy = auto
4.29/4.31	c sign_strategy = cached
4.29/4.31	c use_preprocessing = -1
4.29/4.31	c output_implicant = 1
4.29/4.31	c timeout_seconds = 0
4.29/4.31	c running SatELite... done
4.29/4.31	c 549 vars eliminated
4.29/4.31	c received 57 units and 12073 clauses from SatELite
4.29/4.31	c 605 assignments made, starting to guess now
4.29/4.31	c ===================================[MXC]=====================================
4.29/4.31	c | Conflicts |                Clause Statistics                   |   Vars   |
4.29/4.31	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
4.29/4.31	c =============================================================================
4.29/4.31	c |         0 |       0    1090    10983        0        0     nan |     2737 |
4.29/4.31	c |       100 |       0    1094    10983       96     1050    13.1 |     2132 |
4.29/4.31	c |       210 |       0    1094    10983      206     1105    17.6 |     2132 |
4.29/4.31	c |       441 |       0    1094    10983      437     1220    16.4 |     2132 |
4.29/4.31	c |       805 |       0    1094    10983      801     1402    21.6 |     2132 |
4.29/4.31	c |      1315 |       0    1094    10983     1311     1657    19.6 |     2132 |
4.29/4.31	c |      1986 |       0    1095    10983     1981     1993    19.9 |     2132 |
4.29/4.31	c |      2834 |       0    1095    10983     1829     2417    18.9 |     2132 |
4.29/4.31	c |      3876 |       0    1096    10983     2870     2938    19.8 |     2132 |
4.29/4.31	c |      5132 |       0    1097    10983     2631     3566    20.7 |     2132 |
4.29/4.31	c |      6623 |       0    1102    10983     4117     4311    20.5 |     2132 |
4.29/4.31	c |      8373 |       0    1104    10983     3614     5186    19.4 |     2132 |
4.29/4.31	c |     10408 |       0    1110    10983     5643     6204    20.7 |     2132 |
4.29/4.31	c |     12756 |       0    1114    10983     4607     7378    20.7 |     2132 |
4.29/4.31	c |     15449 |       0    1120    10983     7294     7814    22.5 |     2132 |
4.29/4.31	c |     18521 |       0    1129    10983     6416     8175    22.4 |     2132 |
4.29/4.31	c |     22010 |       0    1134    10983     5710     8523    26.1 |     2132 |
4.29/4.31	c |     25958 |       0    1145    10983     5238     8889    24.2 |     2132 |
4.29/4.31	c |     30411 |       0    1155    10983     5071     9253    26.6 |     2132 |
4.29/4.31	c |     35419 |       0    1162    10983     5283     9609    27.3 |     2132 |
4.29/4.31	c |     41038 |       0    1167    10983     5950     9962    28.6 |     2132 |
4.29/4.31	c |     47329 |       0    1171    10983     7134    10313    30.2 |     2132 |
4.29/4.31	c |     52942 |       0    1175    10983     7499    10600    28.9 |     2132 |
4.29/4.31	c ----- stats for thread 0 -----
4.29/4.31	c restarts: 229
4.29/4.31	c decisions: 134272
4.29/4.31	c propagations: 3436017
4.29/4.31	c conflicts: 52942
4.29/4.31	c 4.313s elapsed
4.29/4.31	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1783557-1241861797/watcher-1783557-1241861797 -o /tmp/evaluation-result-1783557-1241861797/solver-1783557-1241861797 -C 5000 -W 6000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1783557-1241861797.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): 6000 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: 0.00 0.00 0.00 3/64 30928
/proc/meminfo: memFree=1747552/2055920 swapFree=4181940/4192956
[pid=30928] ppid=30926 vsize=2316 CPUtime=0
/proc/30928/stat : 30928 (mxc-sat09) R 30926 30928 30891 0 -1 4194304 437 0 0 0 0 0 0 0 18 0 1 0 214206961 2371584 423 1992294400 134512640 135192793 4294956224 18446744073709551615 134749005 0 0 4096 0 0 0 0 17 1 0 0
/proc/30928/statm: 579 423 55 166 0 410 0

[startup+0.0726491 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 30928
/proc/meminfo: memFree=1747552/2055920 swapFree=4181940/4192956
[pid=30928] ppid=30926 vsize=3268 CPUtime=0.06
/proc/30928/stat : 30928 (mxc-sat09) R 30926 30928 30891 0 -1 4194304 851 0 0 0 6 0 0 0 18 0 1 0 214206961 3346432 666 1992294400 134512640 135192793 4294956224 18446744073709551615 134564106 0 0 4096 0 0 0 0 17 1 0 0
/proc/30928/statm: 817 666 56 166 0 648 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3268

[startup+0.10165 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 30928
/proc/meminfo: memFree=1747552/2055920 swapFree=4181940/4192956
[pid=30928] ppid=30926 vsize=3432 CPUtime=0.09
/proc/30928/stat : 30928 (mxc-sat09) R 30926 30928 30891 0 -1 4194304 881 0 0 0 9 0 0 0 18 0 1 0 214206961 3514368 696 1992294400 134512640 135192793 4294956224 18446744073709551615 134573925 0 0 4096 0 0 0 0 17 1 0 0
/proc/30928/statm: 858 696 56 166 0 689 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3432

[startup+0.301668 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 30928
/proc/meminfo: memFree=1747552/2055920 swapFree=4181940/4192956
[pid=30928] ppid=30926 vsize=4852 CPUtime=0.29
/proc/30928/stat : 30928 (mxc-sat09) R 30926 30928 30891 0 -1 4194304 1307 0 0 0 29 0 0 0 19 0 1 0 214206961 4968448 1077 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30928/statm: 1213 1078 73 166 0 1044 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4852

[startup+0.701701 s]
/proc/loadavg: 0.00 0.00 0.00 3/64 30928
/proc/meminfo: memFree=1747552/2055920 swapFree=4181940/4192956
[pid=30928] ppid=30926 vsize=6064 CPUtime=0.69
/proc/30928/stat : 30928 (mxc-sat09) R 30926 30928 30891 0 -1 4194304 1588 0 0 0 68 1 0 0 22 0 1 0 214206961 6209536 1358 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30928/statm: 1516 1358 73 166 0 1347 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6064

[startup+1.50177 s]
/proc/loadavg: 0.00 0.00 0.00 2/65 30929
/proc/meminfo: memFree=1741912/2055920 swapFree=4181940/4192956
[pid=30928] ppid=30926 vsize=6748 CPUtime=1.49
/proc/30928/stat : 30928 (mxc-sat09) R 30926 30928 30891 0 -1 4194304 1760 0 0 0 148 1 0 0 25 0 1 0 214206961 6909952 1530 1992294400 134512640 135192793 4294956224 18446744073709551615 134534168 0 0 4096 0 0 0 0 17 1 0 0
/proc/30928/statm: 1687 1530 73 166 0 1518 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6748

[startup+3.10191 s]
/proc/loadavg: 0.00 0.00 0.00 2/65 30929
/proc/meminfo: memFree=1741016/2055920 swapFree=4181940/4192956
[pid=30928] ppid=30926 vsize=7672 CPUtime=3.09
/proc/30928/stat : 30928 (mxc-sat09) R 30926 30928 30891 0 -1 4194304 1994 0 0 0 308 1 0 0 25 0 1 0 214206961 7856128 1764 1992294400 134512640 135192793 4294956224 18446744073709551615 134534215 0 0 4096 0 0 0 0 17 1 0 0
/proc/30928/statm: 1918 1764 73 166 0 1749 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7672

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

[startup+3.90198 s]
/proc/loadavg: 0.08 0.02 0.01 2/65 30929
/proc/meminfo: memFree=1740568/2055920 swapFree=4181940/4192956
[pid=30928] ppid=30926 vsize=7944 CPUtime=3.89
/proc/30928/stat : 30928 (mxc-sat09) R 30926 30928 30891 0 -1 4194304 2055 0 0 0 388 1 0 0 25 0 1 0 214206961 8134656 1825 1992294400 134512640 135192793 4294956224 18446744073709551615 134533831 0 0 4096 0 0 0 0 17 1 0 0
/proc/30928/statm: 1986 1825 73 166 0 1817 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 7944

[startup+4.30202 s]
/proc/loadavg: 0.08 0.02 0.01 2/65 30929
/proc/meminfo: memFree=1740248/2055920 swapFree=4181940/4192956
[pid=30928] ppid=30926 vsize=8080 CPUtime=4.29
/proc/30928/stat : 30928 (mxc-sat09) R 30926 30928 30891 0 -1 4194304 2086 0 0 0 428 1 0 0 25 0 1 0 214206961 8273920 1856 1992294400 134512640 135192793 4294956224 18446744073709551615 134533808 0 0 4096 0 0 0 0 17 1 0 0
/proc/30928/statm: 2020 1856 73 166 0 1851 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 8080

Child status: 10
Real time (s): 4.31669
CPU time (s): 4.31534
CPU user time (s): 4.29635
CPU system time (s): 0.018997
CPU usage (%): 99.9687
Max. virtual memory (cumulated for all children) (KiB): 8080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.29635
system time used= 0.018997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2093
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= 5
involuntary context switches= 8

runsolver used 0.007998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node58 at 2009-05-09 11:36:37
IDJOB=1783557
IDBENCH=24595
IDSOLVER=613
FILE ID=node58/1783557-1241861797
PBS_JOBID= 9264557
Free space on /tmp= 66136 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG7a-gensys-ukn001.sat05-3841.reshuffled-07.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1783557-1241861797/watcher-1783557-1241861797 -o /tmp/evaluation-result-1783557-1241861797/solver-1783557-1241861797 -C 5000 -W 6000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1783557-1241861797.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 74af041eb51b172e799baf4bb7eaa52f
RANDOM SEED=935682497

node58.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		: 3000.233
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		: 3000.233
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:       1747968 kB
Buffers:         22808 kB
Cached:         221748 kB
SwapCached:       4936 kB
Active:          69840 kB
Inactive:       183108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1747968 kB
SwapTotal:     4192956 kB
SwapFree:      4181940 kB
Dirty:            1600 kB
Writeback:           0 kB
Mapped:          14572 kB
Slab:            41004 kB
Committed_AS:   668496 kB
PageTables:       1356 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= 66136 MiB
End job on node58 at 2009-05-09 11:36:42