Trace number 3094919

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 0.837871 0.839147

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v100-c2130-S1926673460-089.SATISFIABLE.cnf
MD5SUM9d309b87a927b4b93163b466ed90b7e5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
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 

0.79/0.83	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.83	c input CNF file=HOME/instance-3094919-1301753786.cnf 
0.79/0.83	c Clause#=2130  var#=100  ratio=21 
0.79/0.83	c Simplified clause#=2130 
0.79/0.83	c XOR_varElimination deleted var#=0 clauses#=2130 
0.79/0.83	c inative var#=0 
0.79/0.83	c free var#=100  
0.79/0.83	c local search on 
0.79/0.83	c A solution found by local search 
0.79/0.83	c unfixed var#=0 var#=100 
0.79/0.83	c verified 
0.79/0.83	c 
0.79/0.83	s SATISFIABLE
0.79/0.83	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 
0.79/0.83	v 0
0.79/0.83	c 
0.79/0.83	c  Running time=0.836872

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-3094919-1301753786/watcher-3094919-1301753786 -o /tmp/evaluation-result-3094919-1301753786/solver-3094919-1301753786 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3094919-1301753786.cnf 

running on 2 cores: 4,6

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: 3.98 4.00 3.94 3/185 19127
/proc/meminfo: memFree=21284116/32951132 swapFree=67111528/67111528
[pid=19127] ppid=19125 vsize=3164 CPUtime=0 cores=4,6
/proc/19127/stat : 19127 (MPhaseSAT64) R 19125 19127 18377 0 -1 4202496 380 0 0 0 0 0 0 0 25 0 1 0 286977260 3239936 319 33554432000 134512640 134761588 4294523968 18446744073709551615 134559296 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19127/statm: 791 319 237 61 0 94 0

[startup+0.0466381 s]
/proc/loadavg: 3.98 4.00 3.94 3/185 19127
/proc/meminfo: memFree=21284116/32951132 swapFree=67111528/67111528
[pid=19127] ppid=19125 vsize=3320 CPUtime=0.04 cores=4,6
/proc/19127/stat : 19127 (MPhaseSAT64) R 19125 19127 18377 0 -1 4202496 382 0 0 0 4 0 0 0 25 0 1 0 286977260 3399680 321 33554432000 134512640 134761588 4294523968 18446744073709551615 134580572 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19127/statm: 830 321 237 61 0 133 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3320

[startup+0.100625 s]
/proc/loadavg: 3.98 4.00 3.94 3/185 19127
/proc/meminfo: memFree=21284116/32951132 swapFree=67111528/67111528
[pid=19127] ppid=19125 vsize=3704 CPUtime=0.09 cores=4,6
/proc/19127/stat : 19127 (MPhaseSAT64) R 19125 19127 18377 0 -1 4202496 553 0 0 0 9 0 0 0 25 0 1 0 286977260 3792896 492 33554432000 134512640 134761588 4294523968 18446744073709551615 134616850 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19127/statm: 926 492 273 61 0 229 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3704

[startup+0.300591 s]
/proc/loadavg: 3.98 4.00 3.94 3/185 19127
/proc/meminfo: memFree=21284116/32951132 swapFree=67111528/67111528
[pid=19127] ppid=19125 vsize=4964 CPUtime=0.29 cores=4,6
/proc/19127/stat : 19127 (MPhaseSAT64) R 19125 19127 18377 0 -1 4202496 869 0 0 0 29 0 0 0 25 0 1 0 286977260 5083136 808 33554432000 134512640 134761588 4294523968 18446744073709551615 134748154 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19127/statm: 1241 808 274 61 0 544 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4964

[startup+0.700487 s]
/proc/loadavg: 3.98 4.00 3.94 3/185 19127
/proc/meminfo: memFree=21284116/32951132 swapFree=67111528/67111528
[pid=19127] ppid=19125 vsize=5872 CPUtime=0.69 cores=4,6
/proc/19127/stat : 19127 (MPhaseSAT64) R 19125 19127 18377 0 -1 4202496 1224 0 0 0 69 0 0 0 25 0 1 0 286977260 6012928 1035 33554432000 134512640 134761588 4294523968 18446744073709551615 134748016 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19127/statm: 1468 1035 274 61 0 771 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5872

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

[startup+0.800481 s]
/proc/loadavg: 3.98 4.00 3.94 3/185 19127
/proc/meminfo: memFree=21284116/32951132 swapFree=67111528/67111528
[pid=19127] ppid=19125 vsize=5616 CPUtime=0.79 cores=4,6
/proc/19127/stat : 19127 (MPhaseSAT64) R 19125 19127 18377 0 -1 4202496 1227 0 0 0 79 0 0 0 25 0 1 0 286977260 5750784 974 33554432000 134512640 134761588 4294523968 18446744073709551615 134605307 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/19127/statm: 1404 974 277 61 0 707 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5616

Child status: 10
Real time (s): 0.839147
CPU time (s): 0.837871
CPU user time (s): 0.836872
CPU system time (s): 0.000999
CPU usage (%): 99.8479
Max. virtual memory (cumulated for all children) (KiB): 5872

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.836872
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= 1236
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= 11

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-02 16:16:26
IDJOB=3094919
IDBENCH=82801
IDSOLVER=1521
FILE ID=node128/3094919-1301753786
RUNJOBID= node128-1301748569-18396
PBS_JOBID= 12841009
Free space on /tmp= 71128 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v100-c2130-S1926673460-089.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094919-1301753786/watcher-3094919-1301753786 -o /tmp/evaluation-result-3094919-1301753786/solver-3094919-1301753786 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3094919-1301753786.cnf

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

MD5SUM BENCH= 9d309b87a927b4b93163b466ed90b7e5
RANDOM SEED=804596582

node128.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		: 2666.852
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		: 2666.852
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	: 5332.75
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		: 2666.852
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	: 5332.82
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		: 2666.852
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	: 5332.75
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5332.82
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		: 2666.852
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	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21284148 kB
Buffers:        343552 kB
Cached:       10967676 kB
SwapCached:          0 kB
Active:        7894996 kB
Inactive:      3496044 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21284148 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             324 kB
Writeback:           0 kB
AnonPages:       79676 kB
Mapped:          17088 kB
Slab:           213876 kB
PageTables:       4952 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   275088 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71128 MiB
End job on node128 at 2011-04-02 16:16:27