Trace number 3095176

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 1.69574 1.69911

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v125-c2662-S218235649-089.SATISFIABLE.cnf
MD5SUM010b9faa30750ce3440cb9a8110ebefe
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.095984
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 

1.59/1.69	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
1.59/1.69	c input CNF file=HOME/instance-3095176-1301759678.cnf 
1.59/1.69	c Clause#=2662  var#=125  ratio=21 
1.59/1.69	c Simplified clause#=2662 
1.59/1.69	c XOR_varElimination deleted var#=0 clauses#=2662 
1.59/1.69	c inative var#=0 
1.59/1.69	c free var#=125  
1.59/1.69	c local search on 
1.59/1.69	c A solution found by local search 
1.59/1.69	c unfixed var#=0 var#=125 
1.59/1.69	c verified 
1.59/1.69	c 
1.59/1.69	s SATISFIABLE
1.59/1.69	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 
1.59/1.69	v 0
1.59/1.69	c 
1.59/1.69	c  Running time=1.693743

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-3095176-1301759678/watcher-3095176-1301759678 -o /tmp/evaluation-result-3095176-1301759678/solver-3095176-1301759678 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095176-1301759678.cnf 

running on 2 cores: 5,7

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: 3.99 4.01 3.98 5/193 19841
/proc/meminfo: memFree=20950616/32951124 swapFree=67111528/67111528
[pid=19841] ppid=19839 vsize=3068 CPUtime=0 cores=5,7
/proc/19841/stat : 19841 (MPhaseSAT64) R 19839 19841 19189 0 -1 4202496 321 0 0 0 0 0 0 0 25 0 1 0 287565669 3141632 260 33554432000 134512640 134761588 4288935312 18446744073709551615 134531305 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19841/statm: 767 260 225 61 0 70 0

[startup+0.0586331 s]
/proc/loadavg: 3.99 4.01 3.98 5/193 19841
/proc/meminfo: memFree=20950616/32951124 swapFree=67111528/67111528
[pid=19841] ppid=19839 vsize=3404 CPUtime=0.05 cores=5,7
/proc/19841/stat : 19841 (MPhaseSAT64) R 19839 19841 19189 0 -1 4202496 393 0 0 0 5 0 0 0 25 0 1 0 287565669 3485696 330 33554432000 134512640 134761588 4288935312 18446744073709551615 134580555 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19841/statm: 851 330 237 61 0 154 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3404

[startup+0.100626 s]
/proc/loadavg: 3.99 4.01 3.98 5/193 19841
/proc/meminfo: memFree=20950616/32951124 swapFree=67111528/67111528
[pid=19841] ppid=19839 vsize=3588 CPUtime=0.09 cores=5,7
/proc/19841/stat : 19841 (MPhaseSAT64) R 19839 19841 19189 0 -1 4202496 503 0 0 0 9 0 0 0 25 0 1 0 287565669 3674112 440 33554432000 134512640 134761588 4288935312 18446744073709551615 134614608 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19841/statm: 897 440 268 61 0 200 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3588

[startup+0.30059 s]
/proc/loadavg: 3.99 4.01 3.98 5/193 19841
/proc/meminfo: memFree=20950616/32951124 swapFree=67111528/67111528
[pid=19841] ppid=19839 vsize=4604 CPUtime=0.29 cores=5,7
/proc/19841/stat : 19841 (MPhaseSAT64) R 19839 19841 19189 0 -1 4202496 780 0 0 0 29 0 0 0 25 0 1 0 287565669 4714496 717 33554432000 134512640 134761588 4288935312 18446744073709551615 134747536 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19841/statm: 1151 717 274 61 0 454 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4604

[startup+0.700516 s]
/proc/loadavg: 3.99 4.01 3.98 5/193 19841
/proc/meminfo: memFree=20950616/32951124 swapFree=67111528/67111528
[pid=19841] ppid=19839 vsize=5864 CPUtime=0.69 cores=5,7
/proc/19841/stat : 19841 (MPhaseSAT64) R 19839 19841 19189 0 -1 4202496 1103 0 0 0 69 0 0 0 25 0 1 0 287565669 6004736 1032 33554432000 134512640 134761588 4288935312 18446744073709551615 134747199 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19841/statm: 1466 1032 274 61 0 769 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5864

[startup+1.50037 s]
/proc/loadavg: 3.99 4.01 3.98 6/194 19842
/proc/meminfo: memFree=20947268/32951124 swapFree=67111528/67111528
[pid=19841] ppid=19839 vsize=5480 CPUtime=1.49 cores=5,7
/proc/19841/stat : 19841 (MPhaseSAT64) R 19839 19841 19189 0 -1 4202496 1106 0 0 0 149 0 0 0 25 0 1 0 287565669 5611520 939 33554432000 134512640 134761588 4288935312 18446744073709551615 134605087 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19841/statm: 1370 939 277 61 0 673 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5480

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

[startup+1.60035 s]
/proc/loadavg: 3.99 4.01 3.98 6/194 19842
/proc/meminfo: memFree=20947268/32951124 swapFree=67111528/67111528
[pid=19841] ppid=19839 vsize=5480 CPUtime=1.59 cores=5,7
/proc/19841/stat : 19841 (MPhaseSAT64) R 19839 19841 19189 0 -1 4202496 1106 0 0 0 159 0 0 0 25 0 1 0 287565669 5611520 939 33554432000 134512640 134761588 4288935312 18446744073709551615 134606204 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19841/statm: 1370 939 277 61 0 673 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 5480

Child status: 10
Real time (s): 1.69911
CPU time (s): 1.69574
CPU user time (s): 1.69274
CPU system time (s): 0.002999
CPU usage (%): 99.8018
Max. virtual memory (cumulated for all children) (KiB): 5864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.69274
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1115
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= 3

runsolver used 0.001999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node135 at 2011-04-02 17:54:38
IDJOB=3095176
IDBENCH=83058
IDSOLVER=1521
FILE ID=node135/3095176-1301759678
RUNJOBID= node135-1301756913-19210
PBS_JOBID= 12841067
Free space on /tmp= 71880 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v125-c2662-S218235649-089.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095176-1301759678/watcher-3095176-1301759678 -o /tmp/evaluation-result-3095176-1301759678/solver-3095176-1301759678 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095176-1301759678.cnf

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

MD5SUM BENCH= 010b9faa30750ce3440cb9a8110ebefe
RANDOM SEED=1684095840

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:      20950880 kB
Buffers:        375000 kB
Cached:       11259932 kB
SwapCached:          0 kB
Active:        7970644 kB
Inactive:      3749152 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20950880 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             440 kB
Writeback:           0 kB
AnonPages:       84956 kB
Mapped:          16832 kB
Slab:           218064 kB
PageTables:       5036 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   274204 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 17:54:40