Trace number 3221786

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 0.840872 0.8454

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v125-c2662-S1396350646-062.SATISFIABLE.cnf
MD5SUM74a1475d318f4f1a9026a9771426aa49
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
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 

0.79/0.84	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.79/0.84	c input CNF file=HOME/instance-3221786-1303297591.cnf 
0.79/0.84	c Clause#=2662  var#=125  ratio=21 
0.79/0.84	c Simplified clause#=2662 
0.79/0.84	c XOR_varElimination deleted var#=0 clauses#=2662 
0.79/0.84	c inative var#=0 
0.79/0.84	c free var#=125  
0.79/0.84	c local search on 
0.79/0.84	c A solution found by local search 
0.79/0.84	c unfixed var#=0 var#=125 
0.79/0.84	c verified 
0.79/0.84	c 
0.79/0.84	s SATISFIABLE
0.79/0.84	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 
0.79/0.84	v 0
0.79/0.84	c 
0.79/0.84	c  Running time=0.839873

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-3221786-1303297591/watcher-3221786-1303297591 -o /tmp/evaluation-result-3221786-1303297591/solver-3221786-1303297591 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221786-1303297591.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 13999
/proc/meminfo: memFree=15036152/32951124 swapFree=67111528/67111528
[pid=13999] ppid=13997 vsize=3140 CPUtime=0 cores=1,3,5,7
/proc/13999/stat : 13999 (MPhaseSAT_M) R 13997 13999 13671 0 -1 4202496 318 0 0 0 0 0 0 0 25 0 1 0 422175386 3215360 260 33554432000 134512640 134829744 4293075488 18446744073709551615 134531663 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13999/statm: 785 260 225 78 0 71 0

[startup+0.06334 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 13999
/proc/meminfo: memFree=15036152/32951124 swapFree=67111528/67111528
[pid=13999] ppid=13997 vsize=3476 CPUtime=0.05 cores=1,3,5,7
/proc/13999/stat : 13999 (MPhaseSAT_M) R 13997 13999 13671 0 -1 4202496 392 0 0 0 5 0 0 0 25 0 1 0 422175386 3559424 332 33554432000 134512640 134829744 4293075488 18446744073709551615 134580676 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13999/statm: 869 332 238 78 0 155 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3476

[startup+0.100335 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 13999
/proc/meminfo: memFree=15036152/32951124 swapFree=67111528/67111528
[pid=13999] ppid=13997 vsize=3608 CPUtime=0.09 cores=1,3,5,7
/proc/13999/stat : 13999 (MPhaseSAT_M) R 13997 13999 13671 0 -1 4202496 491 0 0 0 9 0 0 0 25 0 1 0 422175386 3694592 431 33554432000 134512640 134829744 4293075488 18446744073709551615 134669362 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13999/statm: 902 431 270 78 0 188 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3608

[startup+0.300297 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 13999
/proc/meminfo: memFree=15036152/32951124 swapFree=67111528/67111528
[pid=13999] ppid=13997 vsize=4004 CPUtime=0.29 cores=1,3,5,7
/proc/13999/stat : 13999 (MPhaseSAT_M) R 13997 13999 13671 0 -1 4202496 587 0 0 0 29 0 0 0 25 0 1 0 422175386 4100096 527 33554432000 134512640 134829744 4293075488 18446744073709551615 134661435 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13999/statm: 1001 527 270 78 0 287 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4004

[startup+0.700227 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 13999
/proc/meminfo: memFree=15036152/32951124 swapFree=67111528/67111528
[pid=13999] ppid=13997 vsize=4404 CPUtime=0.69 cores=1,3,5,7
/proc/13999/stat : 13999 (MPhaseSAT_M) R 13997 13999 13671 0 -1 4202496 677 0 0 0 69 0 0 0 25 0 1 0 422175386 4509696 617 33554432000 134512640 134829744 4293075488 18446744073709551615 134661632 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13999/statm: 1101 617 270 78 0 387 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4404

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

[startup+0.800208 s]
/proc/loadavg: 2.00 2.00 2.00 3/177 13999
/proc/meminfo: memFree=15036152/32951124 swapFree=67111528/67111528
[pid=13999] ppid=13997 vsize=4404 CPUtime=0.79 cores=1,3,5,7
/proc/13999/stat : 13999 (MPhaseSAT_M) R 13997 13999 13671 0 -1 4202496 688 0 0 0 79 0 0 0 25 0 1 0 422175386 4509696 628 33554432000 134512640 134829744 4293075488 18446744073709551615 134678491 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13999/statm: 1101 628 270 78 0 387 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4404

Child status: 10
Real time (s): 0.8454
CPU time (s): 0.840872
CPU user time (s): 0.840872
CPU system time (s): 0
CPU usage (%): 99.4644
Max. virtual memory (cumulated for all children) (KiB): 4404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.840872
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= 736
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= 1

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node146 at 2011-04-20 13:06:31
IDJOB=3221786
IDBENCH=82981
IDSOLVER=1637
FILE ID=node146/3221786-1303297591
RUNJOBID= node146-1303292585-13690
PBS_JOBID= 13049629
Free space on /tmp= 72828 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v125-c2662-S1396350646-062.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221786-1303297591/watcher-3221786-1303297591 -o /tmp/evaluation-result-3221786-1303297591/solver-3221786-1303297591 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221786-1303297591.cnf

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

MD5SUM BENCH= 74a1475d318f4f1a9026a9771426aa49
RANDOM SEED=2126974848

node146.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		: 2666.830
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	: 5333.66
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.86
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:     32951124 kB
MemFree:      15036432 kB
Buffers:        704128 kB
Cached:       16083764 kB
SwapCached:          0 kB
Active:        8677164 kB
Inactive:      8890672 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15036432 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             396 kB
Writeback:           0 kB
AnonPages:      780004 kB
Mapped:          16320 kB
Slab:           282448 kB
PageTables:       6100 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   954636 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= 72828 MiB
End job on node146 at 2011-04-20 13:06:32