Trace number 3171513

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
UmSat 2011-02-25UNSAT 2.91256 2.913

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v50-c1065-S433637520-048.UNKNOWN.cnf
MD5SUM63c27e328029fd4b3a3f3ab8a494055c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.147976
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses1065
Sum of the clauses size5325
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 51065
Number of clauses of size over 50

Solver Data 

2.89/2.91	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

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-3171513-1301759502/watcher-3171513-1301759502 -o /tmp/evaluation-result-3171513-1301759502/solver-3171513-1301759502 -C 2400 -W 1300 -M 7680 umsat HOME/instance-3171513-1301759502.cnf 

running on 2 cores: 0,2

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: 4.00 4.01 3.94 2/180 16964
/proc/meminfo: memFree=21688472/32951132 swapFree=67111528/67111528
[pid=16964] ppid=16962 vsize=11644 CPUtime=0 cores=0,2
/proc/16964/stat : 16964 (umsat) R 16962 16964 16647 0 -1 4194304 346 0 0 0 0 0 0 0 25 0 1 0 287549882 11923456 284 33554432000 4194304 4263880 140733459678048 18446744073709551615 274664808192 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16964/statm: 2911 284 241 17 0 84 0

[startup+0.0671049 s]
/proc/loadavg: 4.00 4.01 3.94 2/180 16964
/proc/meminfo: memFree=21688472/32951132 swapFree=67111528/67111528
[pid=16964] ppid=16962 vsize=12040 CPUtime=0.06 cores=0,2
/proc/16964/stat : 16964 (umsat) R 16962 16964 16647 0 -1 4202496 449 0 0 0 6 0 0 0 25 0 1 0 287549882 12328960 387 33554432000 4194304 4263880 140733459678048 18446744073709551615 4207828 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16964/statm: 3010 387 247 17 0 183 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12040

[startup+0.101072 s]
/proc/loadavg: 4.00 4.01 3.94 2/180 16964
/proc/meminfo: memFree=21688472/32951132 swapFree=67111528/67111528
[pid=16964] ppid=16962 vsize=12040 CPUtime=0.09 cores=0,2
/proc/16964/stat : 16964 (umsat) R 16962 16964 16647 0 -1 4202496 464 0 0 0 9 0 0 0 25 0 1 0 287549882 12328960 402 33554432000 4194304 4263880 140733459678048 18446744073709551615 4207744 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16964/statm: 3010 402 247 17 0 183 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12040

[startup+0.301064 s]
/proc/loadavg: 4.00 4.01 3.94 2/180 16964
/proc/meminfo: memFree=21688472/32951132 swapFree=67111528/67111528
[pid=16964] ppid=16962 vsize=12296 CPUtime=0.29 cores=0,2
/proc/16964/stat : 16964 (umsat) R 16962 16964 16647 0 -1 4202496 524 0 0 0 29 0 0 0 25 0 1 0 287549882 12591104 462 33554432000 4194304 4263880 140733459678048 18446744073709551615 4207840 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16964/statm: 3074 462 247 17 0 247 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12296

[startup+0.70097 s]
/proc/loadavg: 4.00 4.01 3.94 2/180 16964
/proc/meminfo: memFree=21688472/32951132 swapFree=67111528/67111528
[pid=16964] ppid=16962 vsize=12536 CPUtime=0.69 cores=0,2
/proc/16964/stat : 16964 (umsat) R 16962 16964 16647 0 -1 4202496 589 0 0 0 69 0 0 0 25 0 1 0 287549882 12836864 527 33554432000 4194304 4263880 140733459678048 18446744073709551615 4207698 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16964/statm: 3134 527 247 17 0 307 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12536

[startup+1.50085 s]
/proc/loadavg: 4.00 4.01 3.94 5/188 17002
/proc/meminfo: memFree=21677612/32951132 swapFree=67111528/67111528
[pid=16964] ppid=16962 vsize=12928 CPUtime=1.49 cores=0,2
/proc/16964/stat : 16964 (umsat) R 16962 16964 16647 0 -1 4202496 675 0 0 0 149 0 0 0 25 0 1 0 287549882 13238272 613 33554432000 4194304 4263880 140733459678048 18446744073709551615 4223072 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16964/statm: 3232 613 247 17 0 405 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12928

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

[startup+2.30071 s]
/proc/loadavg: 4.00 4.01 3.94 5/188 17002
/proc/meminfo: memFree=21672528/32951132 swapFree=67111528/67111528
[pid=16964] ppid=16962 vsize=13140 CPUtime=2.29 cores=0,2
/proc/16964/stat : 16964 (umsat) R 16962 16964 16647 0 -1 4202496 729 0 0 0 229 0 0 0 25 0 1 0 287549882 13455360 667 33554432000 4194304 4263880 140733459678048 18446744073709551615 4207668 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16964/statm: 3285 667 247 17 0 458 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 13140

[startup+2.70065 s]
/proc/loadavg: 4.00 4.01 3.94 5/188 17002
/proc/meminfo: memFree=21672528/32951132 swapFree=67111528/67111528
[pid=16964] ppid=16962 vsize=13260 CPUtime=2.69 cores=0,2
/proc/16964/stat : 16964 (umsat) R 16962 16964 16647 0 -1 4202496 760 0 0 0 269 0 0 0 25 0 1 0 287549882 13578240 698 33554432000 4194304 4263880 140733459678048 18446744073709551615 4207753 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16964/statm: 3315 698 247 17 0 488 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 13260

[startup+2.90063 s]
/proc/loadavg: 4.00 4.01 3.94 5/188 17002
/proc/meminfo: memFree=21672528/32951132 swapFree=67111528/67111528
[pid=16964] ppid=16962 vsize=13260 CPUtime=2.89 cores=0,2
/proc/16964/stat : 16964 (umsat) R 16962 16964 16647 0 -1 4202496 768 0 0 0 289 0 0 0 25 0 1 0 287549882 13578240 706 33554432000 4194304 4263880 140733459678048 18446744073709551615 4207828 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/16964/statm: 3315 706 247 17 0 488 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 13260

Child status: 0
Real time (s): 2.913
CPU time (s): 2.91256
CPU user time (s): 2.91056
CPU system time (s): 0.001999
CPU usage (%): 99.9846
Max. virtual memory (cumulated for all children) (KiB): 13260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.91056
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= 776
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= 8

runsolver used 0.001999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node131 at 2011-04-02 17:51:42
IDJOB=3171513
IDBENCH=82731
IDSOLVER=1582
FILE ID=node131/3171513-1301759502
RUNJOBID= node131-1301756898-16665
PBS_JOBID= 12841065
Free space on /tmp= 71652 MiB

SOLVER NAME= UmSat 2011-02-25
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v50-c1065-S433637520-048.UNKNOWN.cnf
COMMAND LINE= umsat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3171513-1301759502/watcher-3171513-1301759502 -o /tmp/evaluation-result-3171513-1301759502/solver-3171513-1301759502 -C 2400 -W 1300 -M 7680  umsat HOME/instance-3171513-1301759502.cnf

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

MD5SUM BENCH= 63c27e328029fd4b3a3f3ab8a494055c
RANDOM SEED=15767394

node131.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	: 5332.83
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	: 5332.75
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	: 5332.77
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21688744 kB
Buffers:        352940 kB
Cached:       10580684 kB
SwapCached:          0 kB
Active:        6798584 kB
Inactive:      4201400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21688744 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            4676 kB
Writeback:           0 kB
AnonPages:       66144 kB
Mapped:          15436 kB
Slab:           199696 kB
PageTables:       5180 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   241596 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71648 MiB
End job on node131 at 2011-04-02 17:51:45