Trace number 3095572

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 1.08583 1.08656

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v150-c3195-S1216095115-028.SATISFIABLE.cnf
MD5SUMeeb610362e04643aaf1590ad5e0ca989
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.088986
Satisfiable
(Un)Satisfiability was proved
Number of variables150
Number of clauses3195
Sum of the clauses size15975
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 53195
Number of clauses of size over 50

Solver Data 

1.00/1.08	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
1.00/1.08	c input CNF file=HOME/instance-3095572-1301753875.cnf 
1.00/1.08	c Clause#=3195  var#=150  ratio=21 
1.00/1.08	c Simplified clause#=3195 
1.00/1.08	c XOR_varElimination deleted var#=0 clauses#=3195 
1.00/1.08	c inative var#=0 
1.00/1.08	c free var#=150  
1.00/1.08	c local search on 
1.00/1.08	c A solution found by local search 
1.00/1.08	c unfixed var#=0 var#=150 
1.00/1.08	c verified 
1.00/1.08	c 
1.00/1.08	s SATISFIABLE
1.00/1.08	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 -126 -127 -128 -129 -130 -131 -132 133 -134 135 136 -137 138 139 -140 141 -142 143 -144 145 146 147 148 -149 150 
1.00/1.08	v 0
1.00/1.08	c 
1.00/1.08	c  Running time=1.084835

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-3095572-1301753875/watcher-3095572-1301753875 -o /tmp/evaluation-result-3095572-1301753875/solver-3095572-1301753875 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095572-1301753875.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: 4.02 4.03 4.00 4/193 18632
/proc/meminfo: memFree=20932524/32951124 swapFree=67111528/67111528
[pid=18632] ppid=18630 vsize=3288 CPUtime=0 cores=5,7
/proc/18632/stat : 18632 (MPhaseSAT_M) R 18630 18632 17826 0 -1 4202496 380 0 0 0 0 0 0 0 25 0 1 0 286985349 3366912 319 33554432000 134512640 134829744 4287861504 18446744073709551615 134586366 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18632/statm: 822 319 235 78 0 108 0

[startup+0.054262 s]
/proc/loadavg: 4.02 4.03 4.00 4/193 18632
/proc/meminfo: memFree=20932524/32951124 swapFree=67111528/67111528
[pid=18632] ppid=18630 vsize=3524 CPUtime=0.05 cores=5,7
/proc/18632/stat : 18632 (MPhaseSAT_M) R 18630 18632 17826 0 -1 4202496 408 0 0 0 5 0 0 0 25 0 1 0 286985349 3608576 345 33554432000 134512640 134829744 4287861504 18446744073709551615 134580590 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18632/statm: 881 345 238 78 0 167 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3524

[startup+0.100252 s]
/proc/loadavg: 4.02 4.03 4.00 4/193 18632
/proc/meminfo: memFree=20932524/32951124 swapFree=67111528/67111528
[pid=18632] ppid=18630 vsize=3636 CPUtime=0.09 cores=5,7
/proc/18632/stat : 18632 (MPhaseSAT_M) R 18630 18632 17826 0 -1 4202496 505 0 0 0 9 0 0 0 25 0 1 0 286985349 3723264 441 33554432000 134512640 134829744 4287861504 18446744073709551615 134669317 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18632/statm: 909 441 270 78 0 195 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3636

[startup+0.300213 s]
/proc/loadavg: 4.02 4.03 4.00 4/193 18632
/proc/meminfo: memFree=20932524/32951124 swapFree=67111528/67111528
[pid=18632] ppid=18630 vsize=4164 CPUtime=0.29 cores=5,7
/proc/18632/stat : 18632 (MPhaseSAT_M) R 18630 18632 17826 0 -1 4202496 620 0 0 0 29 0 0 0 25 0 1 0 286985349 4263936 556 33554432000 134512640 134829744 4287861504 18446744073709551615 134623587 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18632/statm: 1041 556 270 78 0 327 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4164

[startup+0.700141 s]
/proc/loadavg: 4.02 4.03 4.00 4/193 18632
/proc/meminfo: memFree=20932524/32951124 swapFree=67111528/67111528
[pid=18632] ppid=18630 vsize=4428 CPUtime=0.69 cores=5,7
/proc/18632/stat : 18632 (MPhaseSAT_M) R 18630 18632 17826 0 -1 4202496 710 0 0 0 69 0 0 0 25 0 1 0 286985349 4534272 646 33554432000 134512640 134829744 4287861504 18446744073709551615 134661828 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18632/statm: 1107 646 270 78 0 393 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4428

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

[startup+0.900102 s]
/proc/loadavg: 4.02 4.03 4.00 4/193 18632
/proc/meminfo: memFree=20932524/32951124 swapFree=67111528/67111528
[pid=18632] ppid=18630 vsize=4692 CPUtime=0.89 cores=5,7
/proc/18632/stat : 18632 (MPhaseSAT_M) R 18630 18632 17826 0 -1 4202496 769 0 0 0 89 0 0 0 25 0 1 0 286985349 4804608 705 33554432000 134512640 134829744 4287861504 18446744073709551615 134603600 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18632/statm: 1173 705 273 78 0 459 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4692

[startup+1.00109 s]
/proc/loadavg: 4.02 4.03 4.00 5/194 18633
/proc/meminfo: memFree=20930432/32951124 swapFree=67111528/67111528
[pid=18632] ppid=18630 vsize=4692 CPUtime=1 cores=5,7
/proc/18632/stat : 18632 (MPhaseSAT_M) R 18630 18632 17826 0 -1 4202496 778 0 0 0 100 0 0 0 25 0 1 0 286985349 4804608 714 33554432000 134512640 134829744 4287861504 18446744073709551615 134605244 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/18632/statm: 1173 714 273 78 0 459 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 4692

Child status: 10
Real time (s): 1.08656
CPU time (s): 1.08583
CPU user time (s): 1.08483
CPU system time (s): 0.000999
CPU usage (%): 99.9331
Max. virtual memory (cumulated for all children) (KiB): 4692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.08483
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= 787
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= 7
involuntary context switches= 3

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node135 at 2011-04-02 16:17:55
IDJOB=3095572
IDBENCH=82854
IDSOLVER=1522
FILE ID=node135/3095572-1301753875
RUNJOBID= node135-1301748568-17847
PBS_JOBID= 12841002
Free space on /tmp= 71880 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v150-c3195-S1216095115-028.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095572-1301753875/watcher-3095572-1301753875 -o /tmp/evaluation-result-3095572-1301753875/solver-3095572-1301753875 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095572-1301753875.cnf

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

MD5SUM BENCH= eeb610362e04643aaf1590ad5e0ca989
RANDOM SEED=654114186

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:      20932556 kB
Buffers:        373976 kB
Cached:       11256864 kB
SwapCached:          0 kB
Active:        7988884 kB
Inactive:      3749292 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20932556 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             460 kB
Writeback:           0 kB
AnonPages:      107636 kB
Mapped:          17144 kB
Slab:           218008 kB
PageTables:       5472 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   300680 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 16:17:56