Trace number 3095210

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
MPhaseSAT64 2011-03-03SAT 1.36179 1.36414

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v100-c2130-S332580795-055.SATISFIABLE.cnf
MD5SUM1e018578440519156ef15a041316c93e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of clauses2130
Sum of the clauses size10650
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 52130
Number of clauses of size over 50

Solver Data 

1.29/1.36	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
1.29/1.36	c input CNF file=HOME/instance-3095210-1301760264.cnf 
1.29/1.36	c Clause#=2130  var#=100  ratio=21 
1.29/1.36	c Simplified clause#=2130 
1.29/1.36	c XOR_varElimination deleted var#=0 clauses#=2130 
1.29/1.36	c inative var#=0 
1.29/1.36	c free var#=100  
1.29/1.36	c local search on 
1.29/1.36	c A solution found by local search 
1.29/1.36	c unfixed var#=0 var#=100 
1.29/1.36	c verified 
1.29/1.36	c 
1.29/1.36	s SATISFIABLE
1.29/1.36	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 -76 77 -78 79 -80 81 -82 83 84 85 -86 87 88 89 -90 -91 92 93 94 95 -96 -97 98 -99 -100 
1.29/1.36	v 0
1.29/1.36	c 
1.29/1.36	c  Running time=1.360793

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3095210-1301760264/watcher-3095210-1301760264 -o /tmp/evaluation-result-3095210-1301760264/solver-3095210-1301760264 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095210-1301760264.cnf 

running on 2 cores: 0,2

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 4.07 4.05 4.00 4/193 20140
/proc/meminfo: memFree=20948952/32951124 swapFree=67111528/67111528
[pid=20140] ppid=20138 vsize=3164 CPUtime=0 cores=0,2
/proc/20140/stat : 20140 (MPhaseSAT64) R 20138 20140 19189 0 -1 4202496 382 0 0 0 0 0 0 0 25 0 1 0 287624231 3239936 320 33554432000 134512640 134761588 4289749392 18446744073709551615 10277968 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/20140/statm: 791 320 237 61 0 94 0

[startup+0.0826451 s]
/proc/loadavg: 4.07 4.05 4.00 4/193 20140
/proc/meminfo: memFree=20948952/32951124 swapFree=67111528/67111528
[pid=20140] ppid=20138 vsize=3460 CPUtime=0.08 cores=0,2
/proc/20140/stat : 20140 (MPhaseSAT64) R 20138 20140 19189 0 -1 4202496 486 0 0 0 8 0 0 0 25 0 1 0 287624231 3543040 424 33554432000 134512640 134761588 4289749392 18446744073709551615 134614602 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/20140/statm: 865 424 268 61 0 168 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3460

[startup+0.100638 s]
/proc/loadavg: 4.07 4.05 4.00 4/193 20140
/proc/meminfo: memFree=20948952/32951124 swapFree=67111528/67111528
[pid=20140] ppid=20138 vsize=3716 CPUtime=0.09 cores=0,2
/proc/20140/stat : 20140 (MPhaseSAT64) R 20138 20140 19189 0 -1 4202496 556 0 0 0 9 0 0 0 25 0 1 0 287624231 3805184 493 33554432000 134512640 134761588 4289749392 18446744073709551615 134748111 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/20140/statm: 929 493 273 61 0 232 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3716

[startup+0.300608 s]
/proc/loadavg: 4.07 4.05 4.00 4/193 20140
/proc/meminfo: memFree=20948952/32951124 swapFree=67111528/67111528
[pid=20140] ppid=20138 vsize=4820 CPUtime=0.29 cores=0,2
/proc/20140/stat : 20140 (MPhaseSAT64) R 20138 20140 19189 0 -1 4202496 835 0 0 0 29 0 0 0 25 0 1 0 287624231 4935680 772 33554432000 134512640 134761588 4289749392 18446744073709551615 134680525 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/20140/statm: 1205 772 274 61 0 508 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4820

[startup+0.700473 s]
/proc/loadavg: 4.07 4.05 4.00 4/193 20140
/proc/meminfo: memFree=20948952/32951124 swapFree=67111528/67111528
[pid=20140] ppid=20138 vsize=5724 CPUtime=0.69 cores=0,2
/proc/20140/stat : 20140 (MPhaseSAT64) R 20138 20140 19189 0 -1 4202496 1157 0 0 0 69 0 0 0 25 0 1 0 287624231 5861376 998 33554432000 134512640 134761588 4289749392 18446744073709551615 134748119 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/20140/statm: 1431 998 274 61 0 734 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5724

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

[startup+1.10745 s]
/proc/loadavg: 4.07 4.05 4.00 6/195 20142
/proc/meminfo: memFree=20926120/32951124 swapFree=67111528/67111528
[pid=20140] ppid=20138 vsize=5596 CPUtime=1.1 cores=0,2
/proc/20140/stat : 20140 (MPhaseSAT64) R 20138 20140 19189 0 -1 4202496 1160 0 0 0 110 0 0 0 25 0 1 0 287624231 5730304 969 33554432000 134512640 134761588 4289749392 18446744073709551615 134606129 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/20140/statm: 1399 969 277 61 0 702 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 5596

[startup+1.30042 s]
/proc/loadavg: 4.07 4.05 4.00 6/195 20142
/proc/meminfo: memFree=20926120/32951124 swapFree=67111528/67111528
[pid=20140] ppid=20138 vsize=5596 CPUtime=1.29 cores=0,2
/proc/20140/stat : 20140 (MPhaseSAT64) R 20138 20140 19189 0 -1 4202496 1160 0 0 0 129 0 0 0 25 0 1 0 287624231 5730304 969 33554432000 134512640 134761588 4289749392 18446744073709551615 134605080 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/20140/statm: 1399 969 277 61 0 702 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 5596

Child status: 10
Real time (s): 1.36414
CPU time (s): 1.36179
CPU user time (s): 1.35979
CPU system time (s): 0.001999
CPU usage (%): 99.8278
Max. virtual memory (cumulated for all children) (KiB): 5724

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.35979
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1169
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= 12
involuntary context switches= 5

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node135 at 2011-04-02 18:04:24
IDJOB=3095210
IDBENCH=83092
IDSOLVER=1521
FILE ID=node135/3095210-1301760264
RUNJOBID= node135-1301756913-19207
PBS_JOBID= 12841067
Free space on /tmp= 71880 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v100-c2130-S332580795-055.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095210-1301760264/watcher-3095210-1301760264 -o /tmp/evaluation-result-3095210-1301760264/solver-3095210-1301760264 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095210-1301760264.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 1e018578440519156ef15a041316c93e
RANDOM SEED=1809506355

node135.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		: 2666.851
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		: 2666.851
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	: 5332.83
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		: 2666.851
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		: 2666.851
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	: 6640.14
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		: 2666.851
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	: 5332.78
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		: 2666.851
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	: 5332.75
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		: 2666.851
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	: 5332.74
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		: 2666.851
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:      20949216 kB
Buffers:        375176 kB
Cached:       11260208 kB
SwapCached:          0 kB
Active:        7971780 kB
Inactive:      3749192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20949216 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             412 kB
Writeback:           0 kB
AnonPages:       85760 kB
Mapped:          16832 kB
Slab:           218164 kB
PageTables:       5424 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   274912 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71880 MiB
End job on node135 at 2011-04-02 18:04:25