Trace number 1719845

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 1.14183 1.14243

General information on the benchmark

Namehoons-vbmc-lucky7.cnf
MD5SUMe05028f569e580a3335aeab2d092cf1f
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.14183
Satisfiable
(Un)Satisfiability was proved
Number of variables8503
Number of clauses25116
Sum of the clauses size58576
Maximum clause length3
Minimum clause length1
Number of clauses of size 121
Number of clauses of size 216730
Number of clauses of size 38365
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.09/1.14	c starting MXC with:
1.09/1.14	c cnf_path = HOME/instance-1719845-1240650105.cnf
1.09/1.14	c restart_strategy = auto
1.09/1.14	c sign_strategy = cached
1.09/1.14	c use_preprocessing = -1
1.09/1.14	c output_implicant = 1
1.09/1.14	c timeout_seconds = 0
1.09/1.14	c running SatELite... done
1.09/1.14	c 6427 vars eliminated
1.09/1.14	c received 294 units and 10059 clauses from SatELite
1.09/1.14	c 6720 assignments made, starting to guess now
1.09/1.14	c ===================================[MXC]=====================================
1.09/1.14	c | Conflicts |                Clause Statistics                   |   Vars   |
1.09/1.14	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
1.09/1.14	c =============================================================================
1.09/1.14	c |         0 |       0    2431     7628        0        0     nan |     8503 |
1.09/1.14	c |       100 |       0    2432     7628       99     1050     7.0 |     1783 |
1.09/1.14	c |       210 |       0    2391     7526      204     1105     7.3 |     1761 |
1.09/1.14	c |       441 |       0    2395     7329      423     1220     9.5 |     1736 |
1.09/1.14	c |       805 |       0    2405     7296      768     1402    10.2 |     1733 |
1.09/1.14	c |      1315 |       0    2410     7257     1263     1657     9.9 |     1728 |
1.09/1.14	c |      1986 |       0    2417     7225     1918     1993     9.8 |     1723 |
1.09/1.14	c |      2834 |       0    2430     7203     1745     2417     9.2 |     1721 |
1.09/1.14	c |      3876 |       0    2437     7190     2749     2938    10.2 |     1720 |
1.09/1.14	c |      5132 |       0    2438     7160     2436     3566    10.3 |     1717 |
1.09/1.14	c |      6623 |       0    2450     7142     3813     4311    10.9 |     1715 |
1.09/1.14	c |      8373 |       0    2454     7134     3149     5186    13.1 |     1714 |
1.09/1.14	c |     10408 |       0    2448     7127     5178     6204    14.1 |     1713 |
1.09/1.14	c |     12756 |       0    1980     5494     1594     7378    11.6 |     1340 |
1.09/1.14	c |     12877 |       0    1993     5494     1696     6140    11.4 |     1286 |
1.09/1.14	c ----- stats for thread 0 -----
1.09/1.14	c restarts: 76
1.09/1.14	c decisions: 27027
1.09/1.14	c propagations: 1720169
1.09/1.14	c conflicts: 12877
1.09/1.14	c 1.140s elapsed
1.09/1.14	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-1719845-1240650105/watcher-1719845-1240650105 -o /tmp/evaluation-result-1719845-1240650105/solver-1719845-1240650105 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1719845-1240650105.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: 0.92 0.98 0.99 3/64 1549
/proc/meminfo: memFree=1526976/2055920 swapFree=4192956/4192956
[pid=1549] ppid=1547 vsize=3588 CPUtime=0
/proc/1549/stat : 1549 (mxc-sat09) R 1547 1549 1451 0 -1 4194304 562 0 0 0 0 0 0 0 18 0 1 0 93038510 3674112 548 1992294400 134512640 135192793 4294956224 18446744073709551615 134568427 0 0 4096 0 0 0 0 17 1 0 0
/proc/1549/statm: 897 550 53 166 0 728 0

[startup+0.102621 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1549
/proc/meminfo: memFree=1526976/2055920 swapFree=4192956/4192956
[pid=1549] ppid=1547 vsize=7116 CPUtime=0.09
/proc/1549/stat : 1549 (mxc-sat09) R 1547 1549 1451 0 -1 4194304 1491 0 0 0 9 0 0 0 18 0 1 0 93038510 7286784 1385 1992294400 134512640 135192793 4294956224 18446744073709551615 134573206 0 0 4096 0 0 0 0 17 1 0 0
/proc/1549/statm: 1779 1385 56 166 0 1610 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7116

[startup+0.201629 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1549
/proc/meminfo: memFree=1526976/2055920 swapFree=4192956/4192956
[pid=1549] ppid=1547 vsize=7236 CPUtime=0.19
/proc/1549/stat : 1549 (mxc-sat09) R 1547 1549 1451 0 -1 4194304 1662 0 0 0 19 0 0 0 18 0 1 0 93038510 7409664 1463 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/1549/statm: 1809 1463 72 166 0 1640 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7236

[startup+0.301637 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1549
/proc/meminfo: memFree=1526976/2055920 swapFree=4192956/4192956
[pid=1549] ppid=1547 vsize=7368 CPUtime=0.29
/proc/1549/stat : 1549 (mxc-sat09) R 1547 1549 1451 0 -1 4194304 1711 0 0 0 29 0 0 0 19 0 1 0 93038510 7544832 1512 1992294400 134512640 135192793 4294956224 18446744073709551615 134533851 0 0 4096 0 0 0 0 17 1 0 0
/proc/1549/statm: 1842 1512 73 166 0 1673 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7368

[startup+0.701672 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1549
/proc/meminfo: memFree=1526976/2055920 swapFree=4192956/4192956
[pid=1549] ppid=1547 vsize=7908 CPUtime=0.69
/proc/1549/stat : 1549 (mxc-sat09) R 1547 1549 1451 0 -1 4194304 1842 0 0 0 69 0 0 0 22 0 1 0 93038510 8097792 1643 1992294400 134512640 135192793 4294956224 18446744073709551615 134534231 0 0 4096 0 0 0 0 17 1 0 0
/proc/1549/statm: 1977 1643 73 166 0 1808 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7908

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

[startup+0.80168 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1549
/proc/meminfo: memFree=1526976/2055920 swapFree=4192956/4192956
[pid=1549] ppid=1547 vsize=8040 CPUtime=0.79
/proc/1549/stat : 1549 (mxc-sat09) R 1547 1549 1451 0 -1 4194304 1862 0 0 0 79 0 0 0 23 0 1 0 93038510 8232960 1663 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/1549/statm: 2010 1663 73 166 0 1841 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 8040

[startup+1.0017 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 1549
/proc/meminfo: memFree=1526976/2055920 swapFree=4192956/4192956
[pid=1549] ppid=1547 vsize=8436 CPUtime=0.99
/proc/1549/stat : 1549 (mxc-sat09) R 1547 1549 1451 0 -1 4194304 1953 0 0 0 99 0 0 0 25 0 1 0 93038510 8638464 1754 1992294400 134512640 135192793 4294956224 18446744073709551615 134534215 0 0 4096 0 0 0 0 17 1 0 0
/proc/1549/statm: 2109 1754 73 166 0 1940 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 8436

[startup+1.10171 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 1550
/proc/meminfo: memFree=1520056/2055920 swapFree=4192956/4192956
[pid=1549] ppid=1547 vsize=8576 CPUtime=1.09
/proc/1549/stat : 1549 (mxc-sat09) R 1547 1549 1451 0 -1 4194304 1988 0 0 0 109 0 0 0 25 0 1 0 93038510 8781824 1789 1992294400 134512640 135192793 4294956224 18446744073709551615 134549695 0 0 4096 0 0 0 0 17 1 0 0
/proc/1549/statm: 2144 1789 73 166 0 1975 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 8576

Child status: 20
Real time (s): 1.14243
CPU time (s): 1.14183
CPU user time (s): 1.13083
CPU system time (s): 0.010998
CPU usage (%): 99.9471
Max. virtual memory (cumulated for all children) (KiB): 8576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.13083
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1991
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= 3

runsolver used 0.006998 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node50 at 2009-04-25 11:01:45
IDJOB=1719845
IDBENCH=69576
IDSOLVER=504
FILE ID=node50/1719845-1240650105
PBS_JOBID= 9186511
Free space on /tmp= 66524 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT_RACE08/cnf/hoons-vbmc-lucky7.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1719845-1240650105/watcher-1719845-1240650105 -o /tmp/evaluation-result-1719845-1240650105/solver-1719845-1240650105 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1719845-1240650105.cnf

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

MD5SUM BENCH= e05028f569e580a3335aeab2d092cf1f
RANDOM SEED=253778104

node50.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		: 3000.216
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		: 3000.216
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:       1527392 kB
Buffers:         85540 kB
Cached:         342520 kB
SwapCached:          0 kB
Active:          44984 kB
Inactive:       396968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1527392 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1044 kB
Writeback:           0 kB
Mapped:          23652 kB
Slab:            72508 kB
Committed_AS:   259620 kB
PageTables:       1448 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= 66520 MiB
End job on node50 at 2009-04-25 11:01:46