Trace number 3221456

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 0.623904 0.624734

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v75-c1597-S1636883934-028.SATISFIABLE.cnf
MD5SUMf499dfbb776939482f3f42f9fdb448de
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.026995
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 

0.59/0.62	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.59/0.62	c input CNF file=HOME/instance-3221456-1303294740.cnf 
0.59/0.62	c Clause#=1597  var#=75  ratio=21 
0.59/0.62	c Simplified clause#=1597 
0.59/0.62	c XOR_varElimination deleted var#=0 clauses#=1597 
0.59/0.62	c inative var#=0 
0.59/0.62	c free var#=75  
0.59/0.62	c local search on 
0.59/0.62	c A solution found by local search 
0.59/0.62	c unfixed var#=0 var#=75 
0.59/0.62	c verified 
0.59/0.62	c 
0.59/0.62	s SATISFIABLE
0.59/0.62	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 
0.59/0.62	v 0
0.59/0.62	c 
0.59/0.62	c  Running time=0.622905

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-3221456-1303294740/watcher-3221456-1303294740 -o /tmp/evaluation-result-3221456-1303294740/solver-3221456-1303294740 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221456-1303294740.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: 1.97 1.97 1.99 2/177 23966
/proc/meminfo: memFree=18152104/32950928 swapFree=67111528/67111528
[pid=23966] ppid=23964 vsize=3212 CPUtime=0 cores=1,3,5,7
/proc/23966/stat : 23966 (MPhaseSAT_M) R 23964 23966 22903 0 -1 4202496 372 0 0 0 0 0 0 0 25 0 1 0 441073704 3289088 312 33554432000 134512640 134829744 4294087456 18446744073709551615 134541416 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/23966/statm: 803 312 238 78 0 89 0

[startup+0.0633939 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 23966
/proc/meminfo: memFree=18152104/32950928 swapFree=67111528/67111528
[pid=23966] ppid=23964 vsize=3492 CPUtime=0.06 cores=1,3,5,7
/proc/23966/stat : 23966 (MPhaseSAT_M) R 23964 23966 22903 0 -1 4202496 448 0 0 0 6 0 0 0 25 0 1 0 441073704 3575808 388 33554432000 134512640 134829744 4294087456 18446744073709551615 134722416 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/23966/statm: 873 388 270 78 0 159 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3492

[startup+0.100399 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 23966
/proc/meminfo: memFree=18152104/32950928 swapFree=67111528/67111528
[pid=23966] ppid=23964 vsize=3624 CPUtime=0.09 cores=1,3,5,7
/proc/23966/stat : 23966 (MPhaseSAT_M) R 23964 23966 22903 0 -1 4202496 480 0 0 0 9 0 0 0 25 0 1 0 441073704 3710976 420 33554432000 134512640 134829744 4294087456 18446744073709551615 134722439 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/23966/statm: 906 420 270 78 0 192 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3624

[startup+0.300347 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 23966
/proc/meminfo: memFree=18152104/32950928 swapFree=67111528/67111528
[pid=23966] ppid=23964 vsize=3888 CPUtime=0.29 cores=1,3,5,7
/proc/23966/stat : 23966 (MPhaseSAT_M) R 23964 23966 22903 0 -1 4202496 566 0 0 0 29 0 0 0 25 0 1 0 441073704 3981312 506 33554432000 134512640 134829744 4294087456 18446744073709551615 134722615 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/23966/statm: 972 506 270 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+0.500314 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 23966
/proc/meminfo: memFree=18152104/32950928 swapFree=67111528/67111528
[pid=23966] ppid=23964 vsize=4020 CPUtime=0.49 cores=1,3,5,7
/proc/23966/stat : 23966 (MPhaseSAT_M) R 23964 23966 22903 0 -1 4202496 606 0 0 0 49 0 0 0 25 0 1 0 441073704 4116480 546 33554432000 134512640 134829744 4294087456 18446744073709551615 134678464 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/23966/statm: 1005 546 270 78 0 291 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 4020

[startup+0.600297 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 23966
/proc/meminfo: memFree=18152104/32950928 swapFree=67111528/67111528
[pid=23966] ppid=23964 vsize=4152 CPUtime=0.59 cores=1,3,5,7
/proc/23966/stat : 23966 (MPhaseSAT_M) R 23964 23966 22903 0 -1 4202496 617 0 0 0 59 0 0 0 25 0 1 0 441073704 4251648 557 33554432000 134512640 134829744 4294087456 18446744073709551615 134719552 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/23966/statm: 1038 557 270 78 0 324 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 4152

Child status: 10
Real time (s): 0.624734
CPU time (s): 0.623904
CPU user time (s): 0.622905
CPU system time (s): 0.000999
CPU usage (%): 99.8671
Max. virtual memory (cumulated for all children) (KiB): 4152

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.622905
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 646
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= 2

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node125 at 2011-04-20 12:19:00
IDJOB=3221456
IDBENCH=82926
IDSOLVER=1637
FILE ID=node125/3221456-1303294740
RUNJOBID= node125-1303279577-22922
PBS_JOBID= 13049533
Free space on /tmp= 72424 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v75-c1597-S1636883934-028.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221456-1303294740/watcher-3221456-1303294740 -o /tmp/evaluation-result-3221456-1303294740/solver-3221456-1303294740 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221456-1303294740.cnf

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

MD5SUM BENCH= f499dfbb776939482f3f42f9fdb448de
RANDOM SEED=869368136

node125.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		: 2666.828
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	: 5333.65
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		: 2666.828
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	: 5266.55
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		: 2666.828
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	: 5332.84
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		: 2666.828
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	: 5332.74
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		: 2666.828
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	: 5332.82
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		: 2666.828
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	: 5332.74
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		: 2666.828
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		: 2666.828
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      18152384 kB
Buffers:        706004 kB
Cached:       13678672 kB
SwapCached:          0 kB
Active:        6294176 kB
Inactive:      8156848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18152384 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             428 kB
Writeback:           0 kB
AnonPages:       66472 kB
Mapped:          16140 kB
Slab:           284308 kB
PageTables:       4696 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   209584 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= 72424 MiB
End job on node125 at 2011-04-20 12:19:01