Trace number 3221894

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 0.628904 0.631317

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v75-c1597-S445191369-092.SATISFIABLE.cnf
MD5SUMf7876d33ac32441ad4029f31e91e25a6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables75
Number of clauses1597
Sum of the clauses size7985
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 51597
Number of clauses of size over 50

Solver Data 

0.59/0.63	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.59/0.63	c input CNF file=HOME/instance-3221894-1303298685.cnf 
0.59/0.63	c Clause#=1597  var#=75  ratio=21 
0.59/0.63	c Simplified clause#=1597 
0.59/0.63	c XOR_varElimination deleted var#=0 clauses#=1597 
0.59/0.63	c inative var#=0 
0.59/0.63	c free var#=75  
0.59/0.63	c local search on 
0.59/0.63	c A solution found by local search 
0.59/0.63	c unfixed var#=0 var#=75 
0.59/0.63	c verified 
0.59/0.63	c 
0.59/0.63	s SATISFIABLE
0.59/0.63	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 
0.59/0.63	v 0
0.59/0.63	c 
0.59/0.63	c  Running time=0.627905

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-3221894-1303298685/watcher-3221894-1303298685 -o /tmp/evaluation-result-3221894-1303298685/solver-3221894-1303298685 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221894-1303298685.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 2/177 29791
/proc/meminfo: memFree=17571712/32951124 swapFree=67111528/67111528
[pid=29791] ppid=29789 vsize=3212 CPUtime=0 cores=1,3,5,7
/proc/29791/stat : 29791 (MPhaseSAT_M) R 29789 29791 28636 0 -1 4202496 367 0 0 0 0 0 0 0 25 0 1 0 422284579 3289088 308 33554432000 134512640 134829744 4293919344 18446744073709551615 8037456 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/29791/statm: 803 308 237 78 0 89 0

[startup+0.0609889 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 29791
/proc/meminfo: memFree=17571712/32951124 swapFree=67111528/67111528
[pid=29791] ppid=29789 vsize=3360 CPUtime=0.05 cores=1,3,5,7
/proc/29791/stat : 29791 (MPhaseSAT_M) R 29789 29791 28636 0 -1 4202496 443 0 0 0 5 0 0 0 25 0 1 0 422284579 3440640 384 33554432000 134512640 134829744 4293919344 18446744073709551615 7778195 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/29791/statm: 840 384 270 78 0 126 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3360

[startup+0.100985 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 29791
/proc/meminfo: memFree=17571712/32951124 swapFree=67111528/67111528
[pid=29791] ppid=29789 vsize=3624 CPUtime=0.09 cores=1,3,5,7
/proc/29791/stat : 29791 (MPhaseSAT_M) R 29789 29791 28636 0 -1 4202496 482 0 0 0 9 0 0 0 25 0 1 0 422284579 3710976 423 33554432000 134512640 134829744 4293919344 18446744073709551615 134722623 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/29791/statm: 906 423 270 78 0 192 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3624

[startup+0.300949 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 29791
/proc/meminfo: memFree=17571712/32951124 swapFree=67111528/67111528
[pid=29791] ppid=29789 vsize=3888 CPUtime=0.29 cores=1,3,5,7
/proc/29791/stat : 29791 (MPhaseSAT_M) R 29789 29791 28636 0 -1 4202496 562 0 0 0 29 0 0 0 25 0 1 0 422284579 3981312 503 33554432000 134512640 134829744 4293919344 18446744073709551615 134661457 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/29791/statm: 972 503 270 78 0 258 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3888

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

[startup+0.500912 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 29791
/proc/meminfo: memFree=17571712/32951124 swapFree=67111528/67111528
[pid=29791] ppid=29789 vsize=4020 CPUtime=0.49 cores=1,3,5,7
/proc/29791/stat : 29791 (MPhaseSAT_M) R 29789 29791 28636 0 -1 4202496 607 0 0 0 49 0 0 0 25 0 1 0 422284579 4116480 548 33554432000 134512640 134829744 4293919344 18446744073709551615 8067038 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/29791/statm: 1005 548 270 78 0 291 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 4020

[startup+0.600895 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 29791
/proc/meminfo: memFree=17571712/32951124 swapFree=67111528/67111528
[pid=29791] ppid=29789 vsize=4152 CPUtime=0.59 cores=1,3,5,7
/proc/29791/stat : 29791 (MPhaseSAT_M) R 29789 29791 28636 0 -1 4202496 615 0 0 0 59 0 0 0 25 0 1 0 422284579 4251648 556 33554432000 134512640 134829744 4293919344 18446744073709551615 134722439 0 0 4096 1026 0 0 0 17 3 0 0 0
/proc/29791/statm: 1038 556 270 78 0 324 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 4152

Child status: 10
Real time (s): 0.631317
CPU time (s): 0.628904
CPU user time (s): 0.628904
CPU system time (s): 0
CPU usage (%): 99.6178
Max. virtual memory (cumulated for all children) (KiB): 4152

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.628904
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= 646
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= 7

runsolver used 0 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node144 at 2011-04-20 13:24:45
IDJOB=3221894
IDBENCH=82999
IDSOLVER=1637
FILE ID=node144/3221894-1303298685
RUNJOBID= node144-1303288523-28655
PBS_JOBID= 13049590
Free space on /tmp= 72188 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v75-c1597-S445191369-092.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221894-1303298685/watcher-3221894-1303298685 -o /tmp/evaluation-result-3221894-1303298685/solver-3221894-1303298685 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221894-1303298685.cnf

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

MD5SUM BENCH= f7876d33ac32441ad4029f31e91e25a6
RANDOM SEED=1494265773

node144.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		: 2666.850
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		: 2666.850
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	: 5226.16
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		: 2666.850
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		: 2666.850
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	: 5332.83
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		: 2666.850
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		: 2666.850
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	: 5332.82
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		: 2666.850
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		: 2666.850
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:      17571992 kB
Buffers:        762332 kB
Cached:       14048448 kB
SwapCached:          0 kB
Active:        5289588 kB
Inactive:      9731380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      17571992 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             436 kB
Writeback:           0 kB
AnonPages:      210060 kB
Mapped:          16208 kB
Slab:           294740 kB
PageTables:       5024 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   358556 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= 72188 MiB
End job on node144 at 2011-04-20 13:24:45