Trace number 3375176

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 2011-05-14 (fixed)SAT 2.35464 2.35481

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v125-c2662-S446351158-079.SATISFIABLE.cnf
MD5SUM871f75d4bb41b463ca12a7a8837d201b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.057991
Satisfiable
(Un)Satisfiability was proved
Number of variables125
Number of clauses2662
Sum of the clauses size13310
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 52662
Number of clauses of size over 50

Solver Data 

2.29/2.35	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
2.29/2.35	c input CNF file=HOME/instance-3375176-1305449702.cnf 
2.29/2.35	c Clause#=2662  var#=125  ratio=21 
2.29/2.35	c Simplified clause#=2662 
2.29/2.35	c XOR_varElimination deleted var#=0 clauses#=2662 
2.29/2.35	c inative var#=0 
2.29/2.35	c free var#=125  
2.29/2.35	c local search on 
2.29/2.35	c A solution found by local search 
2.29/2.35	c unfixed var#=0 var#=125 
2.29/2.35	c verified 
2.29/2.35	c 
2.29/2.35	s SATISFIABLE
2.29/2.35	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 -101 -102 103 104 105 -106 -107 108 109 110 111 -112 -113 -114 115 -116 -117 118 -119 120 121 122 123 124 125 
2.29/2.35	v 0
2.29/2.35	c 
2.29/2.35	c  Running time=2.352643

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3375176-1305449702/watcher-3375176-1305449702 -o /tmp/evaluation-result-3375176-1305449702/solver-3375176-1305449702 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375176-1305449702.cnf 

running on 2 cores: 1,3

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: 1.12 2.83 3.74 3/236 15332
/proc/meminfo: memFree=19183076/32950928 swapFree=64721848/67111528
[pid=15332] ppid=15330 vsize=12372 CPUtime=0 cores=1,3
/proc/15332/stat : 15332 (MPhaseSAT64) R 15330 15332 14954 0 -1 4202496 467 0 0 0 0 0 0 0 22 0 1 0 656570003 12668928 395 33554432000 4194304 4479436 140735386838064 18446744073709551615 4267410 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15332/statm: 3093 395 282 70 0 213 0

[startup+0.0952959 s]
/proc/loadavg: 1.12 2.83 3.74 3/236 15332
/proc/meminfo: memFree=19183076/32950928 swapFree=64721848/67111528
[pid=15332] ppid=15330 vsize=12632 CPUtime=0.09 cores=1,3
/proc/15332/stat : 15332 (MPhaseSAT64) R 15330 15332 14954 0 -1 4202496 640 0 0 0 9 0 0 0 22 0 1 0 656570003 12935168 568 33554432000 4194304 4479436 140735386838064 18446744073709551615 4450896 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15332/statm: 3158 568 325 70 0 278 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12632

[startup+0.100295 s]
/proc/loadavg: 1.12 2.83 3.74 3/236 15332
/proc/meminfo: memFree=19183076/32950928 swapFree=64721848/67111528
[pid=15332] ppid=15330 vsize=12632 CPUtime=0.09 cores=1,3
/proc/15332/stat : 15332 (MPhaseSAT64) R 15330 15332 14954 0 -1 4202496 640 0 0 0 9 0 0 0 22 0 1 0 656570003 12935168 568 33554432000 4194304 4479436 140735386838064 18446744073709551615 4451884 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15332/statm: 3158 568 325 70 0 278 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12632

[startup+0.300259 s]
/proc/loadavg: 1.12 2.83 3.74 3/236 15332
/proc/meminfo: memFree=19183076/32950928 swapFree=64721848/67111528
[pid=15332] ppid=15330 vsize=13688 CPUtime=0.29 cores=1,3
/proc/15332/stat : 15332 (MPhaseSAT64) R 15330 15332 14954 0 -1 4202496 917 0 0 0 29 0 0 0 23 0 1 0 656570003 14016512 836 33554432000 4194304 4479436 140735386838064 18446744073709551615 4451010 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15332/statm: 3422 836 325 70 0 542 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13688

[startup+0.700188 s]
/proc/loadavg: 1.12 2.83 3.74 3/236 15332
/proc/meminfo: memFree=19183076/32950928 swapFree=64721848/67111528
[pid=15332] ppid=15330 vsize=14460 CPUtime=0.69 cores=1,3
/proc/15332/stat : 15332 (MPhaseSAT64) R 15330 15332 14954 0 -1 4202496 1209 0 0 0 69 0 0 0 25 0 1 0 656570003 14807040 1032 33554432000 4194304 4479436 140735386838064 18446744073709551615 4295160 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15332/statm: 3615 1032 328 70 0 735 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14460

[startup+1.50011 s]
/proc/loadavg: 1.12 2.83 3.74 5/238 15347
/proc/meminfo: memFree=19175864/32950928 swapFree=64721848/67111528
[pid=15332] ppid=15330 vsize=14460 CPUtime=1.49 cores=1,3
/proc/15332/stat : 15332 (MPhaseSAT64) R 15330 15332 14954 0 -1 4202496 1209 0 0 0 149 0 0 0 25 0 1 0 656570003 14807040 1032 33554432000 4194304 4479436 140735386838064 18446744073709551615 4295201 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15332/statm: 3615 1032 328 70 0 735 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14460

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

[startup+1.90098 s]
/proc/loadavg: 1.12 2.83 3.74 5/238 15347
/proc/meminfo: memFree=19175864/32950928 swapFree=64721848/67111528
[pid=15332] ppid=15330 vsize=14460 CPUtime=1.89 cores=1,3
/proc/15332/stat : 15332 (MPhaseSAT64) R 15330 15332 14954 0 -1 4202496 1209 0 0 0 189 0 0 0 25 0 1 0 656570003 14807040 1032 33554432000 4194304 4479436 140735386838064 18446744073709551615 4295856 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15332/statm: 3615 1032 328 70 0 735 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 14460

[startup+2.3009 s]
/proc/loadavg: 1.12 2.83 3.74 5/242 15397
/proc/meminfo: memFree=19173672/32950928 swapFree=64721848/67111528
[pid=15332] ppid=15330 vsize=14460 CPUtime=2.29 cores=1,3
/proc/15332/stat : 15332 (MPhaseSAT64) R 15330 15332 14954 0 -1 4202496 1209 0 0 0 229 0 0 0 25 0 1 0 656570003 14807040 1032 33554432000 4194304 4479436 140735386838064 18446744073709551615 4295104 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15332/statm: 3615 1032 328 70 0 735 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 14460

Child status: 10
Real time (s): 2.35481
CPU time (s): 2.35464
CPU user time (s): 2.35264
CPU system time (s): 0.001999
CPU usage (%): 99.9927
Max. virtual memory (cumulated for all children) (KiB): 14460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.35264
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= 1217
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= 4
involuntary context switches= 6

runsolver used 0.008998 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node123 at 2011-05-15 10:55:02
IDJOB=3375176
IDBENCH=82885
IDSOLVER=1855
FILE ID=node123/3375176-1305449702
RUNJOBID= node123-1305449702-15302
PBS_JOBID= 13324867
Free space on /tmp= 73472 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v125-c2662-S446351158-079.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375176-1305449702/watcher-3375176-1305449702 -o /tmp/evaluation-result-3375176-1305449702/solver-3375176-1305449702 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375176-1305449702.cnf

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

MD5SUM BENCH= 871f75d4bb41b463ca12a7a8837d201b
RANDOM SEED=1378754004

node123.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5226.15
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		: 2666.838
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		: 2666.838
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	: 5332.82
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		: 2666.838
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	: 5332.74
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		: 2666.838
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	: 5332.80
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		: 2666.838
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		: 2666.838
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      19183232 kB
Buffers:        308404 kB
Cached:        4123272 kB
SwapCached:      10528 kB
Active:       10582928 kB
Inactive:      2918636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      19183232 kB
SwapTotal:    67111528 kB
SwapFree:     64721848 kB
Dirty:            1260 kB
Writeback:           4 kB
AnonPages:     9067836 kB
Mapped:          16568 kB
Slab:           174440 kB
PageTables:      31664 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 13069948 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= 73472 MiB
End job on node123 at 2011-05-15 10:55:04