Trace number 1554555

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 5.83011 5.83231

General information on the benchmark

NameAPPLICATIONS/bitverif/
countbitssrl/countbitssrl016.cnf
MD5SUM505fee3283f518ccb9d234f549b3c214
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.65659
Satisfiable
(Un)Satisfiability was proved
Number of variables4567
Number of clauses13652
Sum of the clauses size31852
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 29100
Number of clauses of size 34550
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

5.79/5.83	c starting MXC with:
5.79/5.83	c cnf_path = HOME/instance-1554555-1238729346.cnf
5.79/5.83	c restart_strategy = auto
5.79/5.83	c sign_strategy = cached
5.79/5.83	c use_preprocessing = -1
5.79/5.83	c output_implicant = 1
5.79/5.83	c timeout_seconds = 0
5.79/5.83	c running SatELite... done
5.79/5.83	c 2861 vars eliminated
5.79/5.83	c received 2 units and 8392 clauses from SatELite
5.79/5.83	c 2862 assignments made, starting to guess now
5.79/5.83	c ===================================[MXC]=====================================
5.79/5.83	c | Conflicts |                Clause Statistics                   |   Vars   |
5.79/5.83	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
5.79/5.83	c =============================================================================
5.79/5.83	c |         0 |       0    2797     5595        0        0     nan |     4567 |
5.79/5.83	c |       100 |       0    2781     5535       91     1050    24.2 |     1689 |
5.79/5.83	c |       210 |       0    2785     5535      197     1105    20.8 |     1689 |
5.79/5.83	c |       441 |       0    2740     5457      422     1220    24.0 |     1658 |
5.79/5.83	c |       805 |       0    2738     5449      781     1402    29.7 |     1655 |
5.79/5.83	c |      1315 |       0    2744     5449     1285     1657    29.5 |     1655 |
5.79/5.83	c |      1986 |       0    2749     5449     1951     1993    29.1 |     1655 |
5.79/5.83	c |      2834 |       0    2753     5449     1780     2417    26.8 |     1655 |
5.79/5.83	c |      3876 |       0    2754     5449     2821     2938    28.4 |     1655 |
5.79/5.83	c |      5132 |       0    2758     5449     2549     3566    27.6 |     1655 |
5.79/5.83	c |      6623 |       0    2766     5449     4032     4311    28.7 |     1655 |
5.79/5.83	c |      8373 |       0    2768     5449     3487     5186    28.8 |     1655 |
5.79/5.83	c |     10408 |       0    2771     5449     5519     6204    31.5 |     1655 |
5.79/5.83	c |     12756 |       0    2773     5449     4420     7038    26.9 |     1655 |
5.79/5.83	c |     15449 |       0    2770     5440     7111     7358    28.0 |     1653 |
5.79/5.83	c |     18521 |       0    2760     5416     6487     7672    26.0 |     1643 |
5.79/5.83	c |     22010 |       0    2757     5401     6092     7951    25.8 |     1639 |
5.79/5.83	c |     25958 |       0    2764     5401     5991     8249    25.6 |     1639 |
5.79/5.83	c |     30411 |       0    2766     5401     6229     8562    24.9 |     1639 |
5.79/5.83	c |     32243 |       0    2774     5401     8049     8691    25.5 |      558 |
5.79/5.83	c ----- stats for thread 0 -----
5.79/5.83	c restarts: 81
5.79/5.83	c decisions: 44354
5.79/5.83	c propagations: 9438201
5.79/5.83	c conflicts: 32243
5.79/5.83	c 5.830s elapsed
5.79/5.83	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-1554555-1238729346/watcher-1554555-1238729346 -o /tmp/evaluation-result-1554555-1238729346/solver-1554555-1238729346 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1554555-1238729346.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: 0.98 0.97 0.98 3/81 24163
/proc/meminfo: memFree=1766648/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=2492 CPUtime=0
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 406 0 0 0 0 0 0 0 20 0 1 0 1145598416 2551808 392 1992294400 134512640 135192793 4294956224 18446744073709551615 134748785 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 623 392 54 166 0 454 0

[startup+0.011125 s]
/proc/loadavg: 0.98 0.97 0.98 3/81 24163
/proc/meminfo: memFree=1766648/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=2888 CPUtime=0
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 500 0 0 0 0 0 0 0 20 0 1 0 1145598416 2957312 486 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 722 486 54 166 0 553 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2888

[startup+0.102134 s]
/proc/loadavg: 0.98 0.97 0.98 3/81 24163
/proc/meminfo: memFree=1766648/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=4336 CPUtime=0.09
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 941 0 0 0 9 0 0 0 20 0 1 0 1145598416 4440064 879 1992294400 134512640 135192793 4294956224 18446744073709551615 134532645 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 1084 879 72 166 0 915 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4336

[startup+0.301156 s]
/proc/loadavg: 0.98 0.97 0.98 3/81 24163
/proc/meminfo: memFree=1766648/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=4732 CPUtime=0.29
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 1038 0 0 0 29 0 0 0 22 0 1 0 1145598416 4845568 976 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 1183 976 72 166 0 1014 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4732

[startup+0.7022 s]
/proc/loadavg: 0.98 0.97 0.98 3/81 24163
/proc/meminfo: memFree=1766648/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=5128 CPUtime=0.69
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 1134 0 0 0 69 0 0 0 25 0 1 0 1145598416 5251072 1072 1992294400 134512640 135192793 4294956224 18446744073709551615 134551016 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 1282 1072 73 166 0 1113 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5128

[startup+1.50129 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24164
/proc/meminfo: memFree=1762160/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=5656 CPUtime=1.49
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 1278 0 0 0 149 0 0 0 25 0 1 0 1145598416 5791744 1216 1992294400 134512640 135192793 4294956224 18446744073709551615 134550733 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 1414 1216 73 166 0 1245 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5656

[startup+3.10147 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24164
/proc/meminfo: memFree=1761264/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=6320 CPUtime=3.09
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 1436 0 0 0 309 0 0 0 25 0 1 0 1145598416 6471680 1374 1992294400 134512640 135192793 4294956224 18446744073709551615 134551025 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 1580 1374 73 166 0 1411 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6320

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

[startup+4.70164 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24164
/proc/meminfo: memFree=1760944/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=6600 CPUtime=4.69
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 1498 0 0 0 469 0 0 0 25 0 1 0 1145598416 6758400 1436 1992294400 134512640 135192793 4294956224 18446744073709551615 134534215 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 1650 1436 73 166 0 1481 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 6600

[startup+5.50673 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24164
/proc/meminfo: memFree=1760752/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=6868 CPUtime=5.49
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 1534 0 0 0 549 0 0 0 25 0 1 0 1145598416 7032832 1472 1992294400 134512640 135192793 4294956224 18446744073709551615 134533953 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 1717 1472 73 166 0 1548 0
Current children cumulated CPU time (s) 5.49
Current children cumulated vsize (KiB) 6868

[startup+5.70176 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24164
/proc/meminfo: memFree=1760752/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=6868 CPUtime=5.69
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 1536 0 0 0 569 0 0 0 25 0 1 0 1145598416 7032832 1474 1992294400 134512640 135192793 4294956224 18446744073709551615 134552478 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 1717 1474 73 166 0 1548 0
Current children cumulated CPU time (s) 5.69
Current children cumulated vsize (KiB) 6868

[startup+5.80177 s]
/proc/loadavg: 0.98 0.97 0.98 2/82 24164
/proc/meminfo: memFree=1760752/2055920 swapFree=4172784/4192956
[pid=24163] ppid=24161 vsize=6868 CPUtime=5.79
/proc/24163/stat : 24163 (mxc-sat09) R 24161 24163 23855 0 -1 4194304 1536 0 0 0 579 0 0 0 25 0 1 0 1145598416 7032832 1474 1992294400 134512640 135192793 4294956224 18446744073709551615 134533792 0 0 4096 0 0 0 0 17 1 0 0
/proc/24163/statm: 1717 1474 73 166 0 1548 0
Current children cumulated CPU time (s) 5.79
Current children cumulated vsize (KiB) 6868

Child status: 20
Real time (s): 5.83231
CPU time (s): 5.83011
CPU user time (s): 5.82112
CPU system time (s): 0.008998
CPU usage (%): 99.9624
Max. virtual memory (cumulated for all children) (KiB): 6868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.82111
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1545
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= 9

runsolver used 0.011998 second user time and 0.023996 second system time

The end

Launcher Data 

Begin job on node87 at 2009-04-03 05:29:06
IDJOB=1554555
IDBENCH=70783
IDSOLVER=504
FILE ID=node87/1554555-1238729346
PBS_JOBID= 9085331
Free space on /tmp= 66436 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/bitverif/countbitssrl/countbitssrl016.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1554555-1238729346/watcher-1554555-1238729346 -o /tmp/evaluation-result-1554555-1238729346/solver-1554555-1238729346 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1554555-1238729346.cnf

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

MD5SUM BENCH= 505fee3283f518ccb9d234f549b3c214
RANDOM SEED=2123932993

node87.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		: 3000.236
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		: 3000.236
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:       1767064 kB
Buffers:         47636 kB
Cached:         161088 kB
SwapCached:       9352 kB
Active:          51308 kB
Inactive:       168312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1767064 kB
SwapTotal:     4192956 kB
SwapFree:      4172784 kB
Dirty:            1092 kB
Writeback:           0 kB
Mapped:          16472 kB
Slab:            53428 kB
Committed_AS:  2857600 kB
PageTables:       2676 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= 66436 MiB
End job on node87 at 2009-04-03 05:29:12