Trace number 3221900

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
MPhaseSAT_M 2011-02-16SAT 0.674897 0.677278

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v75-c1597-S1009664450-096.SATISFIABLE.cnf
MD5SUM2532888f1d1a6483b85bdee81ac0c479
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables75
Number of clauses1597
Sum of the clauses size7985
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51597
Number of clauses of size over 50

Solver Data 

0.59/0.67	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.59/0.67	c input CNF file=HOME/instance-3221900-1303298685.cnf 
0.59/0.67	c Clause#=1597  var#=75  ratio=21 
0.59/0.67	c Simplified clause#=1597 
0.59/0.67	c XOR_varElimination deleted var#=0 clauses#=1597 
0.59/0.67	c inative var#=0 
0.59/0.67	c free var#=75  
0.59/0.67	c local search on 
0.59/0.67	c A solution found by local search 
0.59/0.67	c unfixed var#=0 var#=75 
0.59/0.67	c verified 
0.59/0.67	c 
0.59/0.67	s SATISFIABLE
0.59/0.67	v 1 -2 3 4 5 6 7 -8 -9 10 11 12 13 14 15 -16 17 -18 19 -20 -21 -22 -23 -24 25 26 27 -28 -29 30 -31 -32 -33 -34 -35 -36 -37 38 -39 -40 41 42 43 44 45 46 -47 -48 49 50 -51 52 -53 54 55 56 -57 58 -59 60 -61 -62 63 64 65 66 67 -68 69 -70 -71 -72 73 -74 -75 
0.59/0.67	v 0
0.59/0.67	c 
0.59/0.67	c  Running time=0.673898

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3221900-1303298685/watcher-3221900-1303298685 -o /tmp/evaluation-result-3221900-1303298685/solver-3221900-1303298685 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221900-1303298685.cnf 

running on 4 cores: 1,3,5,7

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): 5000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 29818
/proc/meminfo: memFree=17571456/32951124 swapFree=67111528/67111528
[pid=29818] ppid=29816 vsize=3212 CPUtime=0 cores=1,3,5,7
/proc/29818/stat : 29818 (MPhaseSAT_M) R 29816 29818 28636 0 -1 4202496 370 0 0 0 0 0 0 0 25 0 1 0 422284658 3289088 310 33554432000 134512640 134829744 4291734736 18446744073709551615 8067036 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/29818/statm: 803 310 237 78 0 89 0

[startup+0.041579 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 29818
/proc/meminfo: memFree=17571456/32951124 swapFree=67111528/67111528
[pid=29818] ppid=29816 vsize=3360 CPUtime=0.03 cores=1,3,5,7
/proc/29818/stat : 29818 (MPhaseSAT_M) R 29816 29818 28636 0 -1 4202496 382 0 0 0 3 0 0 0 25 0 1 0 422284658 3440640 322 33554432000 134512640 134829744 4291734736 18446744073709551615 134552690 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/29818/statm: 840 324 242 78 0 126 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3360

[startup+0.100569 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 29818
/proc/meminfo: memFree=17571456/32951124 swapFree=67111528/67111528
[pid=29818] ppid=29816 vsize=3624 CPUtime=0.09 cores=1,3,5,7
/proc/29818/stat : 29818 (MPhaseSAT_M) R 29816 29818 28636 0 -1 4202496 480 0 0 0 9 0 0 0 25 0 1 0 422284658 3710976 420 33554432000 134512640 134829744 4291734736 18446744073709551615 134661446 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/29818/statm: 906 420 270 78 0 192 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3624

[startup+0.300532 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 29818
/proc/meminfo: memFree=17571456/32951124 swapFree=67111528/67111528
[pid=29818] ppid=29816 vsize=3888 CPUtime=0.29 cores=1,3,5,7
/proc/29818/stat : 29818 (MPhaseSAT_M) R 29816 29818 28636 0 -1 4202496 562 0 0 0 29 0 0 0 25 0 1 0 422284658 3981312 502 33554432000 134512640 134829744 4291734736 18446744073709551615 134722641 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/29818/statm: 972 502 270 78 0 258 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3888

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

[startup+0.500494 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 29818
/proc/meminfo: memFree=17571456/32951124 swapFree=67111528/67111528
[pid=29818] ppid=29816 vsize=4020 CPUtime=0.49 cores=1,3,5,7
/proc/29818/stat : 29818 (MPhaseSAT_M) R 29816 29818 28636 0 -1 4202496 602 0 0 0 49 0 0 0 25 0 1 0 422284658 4116480 542 33554432000 134512640 134829744 4291734736 18446744073709551615 134658034 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/29818/statm: 1005 542 270 78 0 291 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 4020

[startup+0.600489 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 29818
/proc/meminfo: memFree=17571456/32951124 swapFree=67111528/67111528
[pid=29818] ppid=29816 vsize=4152 CPUtime=0.59 cores=1,3,5,7
/proc/29818/stat : 29818 (MPhaseSAT_M) R 29816 29818 28636 0 -1 4202496 611 0 0 0 59 0 0 0 25 0 1 0 422284658 4251648 551 33554432000 134512640 134829744 4291734736 18446744073709551615 134718317 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/29818/statm: 1038 551 270 78 0 324 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 4152

Child status: 10
Real time (s): 0.677278
CPU time (s): 0.674897
CPU user time (s): 0.674897
CPU system time (s): 0
CPU usage (%): 99.6484
Max. virtual memory (cumulated for all children) (KiB): 4152

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.674897
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 642
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= 6
involuntary context switches= 1

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node144 at 2011-04-20 13:24:45
IDJOB=3221900
IDBENCH=83000
IDSOLVER=1637
FILE ID=node144/3221900-1303298685
RUNJOBID= node144-1303288523-28655
PBS_JOBID= 13049590
Free space on /tmp= 72188 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v75-c1597-S1009664450-096.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221900-1303298685/watcher-3221900-1303298685 -o /tmp/evaluation-result-3221900-1303298685/solver-3221900-1303298685 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221900-1303298685.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 2532888f1d1a6483b85bdee81ac0c479
RANDOM SEED=724532298

node144.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.850
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.70
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.850
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5226.16
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.850
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.850
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.850
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.850
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.850
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.850
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      17571720 kB
Buffers:        762332 kB
Cached:       14048448 kB
SwapCached:          0 kB
Active:        5289652 kB
Inactive:      9731388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      17571720 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             436 kB
Writeback:           0 kB
AnonPages:      210060 kB
Mapped:          16208 kB
Slab:           294740 kB
PageTables:       5024 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   361256 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72188 MiB
End job on node144 at 2011-04-20 13:24:46