Trace number 3154426

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
sattime 2011-03-02SAT 0.52492 0.528875

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v50-c4450-S675112162-053.SATISFIABLE.cnf
MD5SUMb7db695fcb9141eaff8463a25c8e621f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
Maximum clause length7
Minimum clause length7
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 50
Number of clauses of size over 54450

Solver Data 

0.49/0.52	c 0 clauses are redundant and removed
0.49/0.52	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.49/0.52	c 0 vars are fixed and 0 clauses are removed after lookahead
0.49/0.52	c initial seed is 2028159216
0.49/0.52	c try=1 flip j=20903 walk=14631 seed 2028159233
0.49/0.52	c A solution is found
0.49/0.52	s SATISFIABLE
0.49/0.52	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 
0.49/0.52	v 0 
0.49/0.52	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3154426-1307668514/watcher-3154426-1307668514 -o /tmp/evaluation-result-3154426-1307668514/solver-3154426-1307668514 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154426-1307668514.cnf 2028159216 

running on 2 cores: 4,6

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: 1.00 1.00 1.21 5/189 11857
/proc/meminfo: memFree=32533740/32950928 swapFree=67052072/67111528
[pid=11857] ppid=11854 vsize=990140 CPUtime=0 cores=4,6
/proc/11857/stat : 11857 (sattime) R 11854 11857 11345 0 -1 4194304 206 0 0 0 0 0 0 0 25 0 1 0 878450145 1013903360 150 33554432000 4194304 4228548 140736475757904 18446744073709551615 235594527429 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11857/statm: 247535 150 101 9 0 244692 0

[startup+0.065017 s]
/proc/loadavg: 1.00 1.00 1.21 5/189 11857
/proc/meminfo: memFree=32533740/32950928 swapFree=67052072/67111528
[pid=11857] ppid=11854 vsize=990928 CPUtime=0.06 cores=4,6
/proc/11857/stat : 11857 (sattime) R 11854 11857 11345 0 -1 4202496 419 0 0 0 6 0 0 0 25 0 1 0 878450145 1014710272 362 33554432000 4194304 4228548 140736475757904 18446744073709551615 4207274 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11857/statm: 247732 362 104 9 0 244889 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 990928

[startup+0.10101 s]
/proc/loadavg: 1.00 1.00 1.21 5/189 11857
/proc/meminfo: memFree=32533740/32950928 swapFree=67052072/67111528
[pid=11857] ppid=11854 vsize=990928 CPUtime=0.09 cores=4,6
/proc/11857/stat : 11857 (sattime) R 11854 11857 11345 0 -1 4202496 419 0 0 0 9 0 0 0 25 0 1 0 878450145 1014710272 362 33554432000 4194304 4228548 140736475757904 18446744073709551615 4207154 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11857/statm: 247732 362 104 9 0 244889 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 990928

[startup+0.300975 s]
/proc/loadavg: 1.00 1.00 1.21 5/189 11857
/proc/meminfo: memFree=32533740/32950928 swapFree=67052072/67111528
[pid=11857] ppid=11854 vsize=990928 CPUtime=0.29 cores=4,6
/proc/11857/stat : 11857 (sattime) R 11854 11857 11345 0 -1 4202496 419 0 0 0 29 0 0 0 25 0 1 0 878450145 1014710272 362 33554432000 4194304 4228548 140736475757904 18446744073709551615 4207189 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11857/statm: 247732 362 104 9 0 244889 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 990928

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

[startup+0.50094 s]
/proc/loadavg: 1.00 1.00 1.21 5/189 11857
/proc/meminfo: memFree=32533740/32950928 swapFree=67052072/67111528
[pid=11857] ppid=11854 vsize=991064 CPUtime=0.49 cores=4,6
/proc/11857/stat : 11857 (sattime) R 11854 11857 11345 0 -1 4202496 539 0 0 0 49 0 0 0 25 0 1 0 878450145 1014849536 481 33554432000 4194304 4228548 140736475757904 18446744073709551615 4217373 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11857/statm: 247766 481 116 9 0 244923 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 991064

Child status: 10
Real time (s): 0.528875
CPU time (s): 0.52492
CPU user time (s): 0.52492
CPU system time (s): 0
CPU usage (%): 99.2522
Max. virtual memory (cumulated for all children) (KiB): 991064

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.52492
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= 543
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= 2
involuntary context switches= 2

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node120 at 2011-06-10 03:15:14
IDJOB=3154426
IDBENCH=82933
IDSOLVER=1564
FILE ID=node120/3154426-1307668514
RUNJOBID= node120-1307668513-11724
PBS_JOBID= 13549466
Free space on /tmp= 74024 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k7-r89-v50-c4450-S675112162-053.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154426-1307668514/watcher-3154426-1307668514 -o /tmp/evaluation-result-3154426-1307668514/solver-3154426-1307668514 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154426-1307668514.cnf 2028159216

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

MD5SUM BENCH= b7db695fcb9141eaff8463a25c8e621f
RANDOM SEED=2028159216

node120.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		: 2666.809
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	: 5333.61
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		: 2666.809
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	: 5226.07
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		: 2666.809
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	: 5332.82
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.82
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		: 2666.809
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:     32950928 kB
MemFree:      32534920 kB
Buffers:         60140 kB
Cached:         182432 kB
SwapCached:      11176 kB
Active:         145544 kB
Inactive:       118448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      32534920 kB
SwapTotal:    67111528 kB
SwapFree:     67052072 kB
Dirty:           31376 kB
Writeback:           0 kB
AnonPages:       18048 kB
Mapped:           9308 kB
Slab:            87068 kB
PageTables:       5208 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  2206728 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= 74012 MiB
End job on node120 at 2011-06-10 03:15:14