Trace number 3371584

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
Lingeling 587f (fixed)UNSAT 2.85556 2.85847

General information on the benchmark

NameSAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/
grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
MD5SUM384c65902b197ca2c64d2ee8a3c64089
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.374942
Satisfiable
(Un)Satisfiability was proved
Number of variables62750
Number of clauses124752
Sum of the clauses size498502
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2250
Number of clauses of size 30
Number of clauses of size 4124500
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.79/2.85	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3371584-1305435727/watcher-3371584-1305435727 -o /tmp/evaluation-result-3371584-1305435727/solver-3371584-1305435727 -C 2400 -W 1300 -M 7680 lingeling HOME/instance-3371584-1305435727.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: 0.92 1.55 2.63 4/373 17073
/proc/meminfo: memFree=18245124/32951124 swapFree=45193364/67111528
[pid=17073] ppid=17071 vsize=10176 CPUtime=0 cores=0,2
/proc/17073/stat : 17073 (lingeling) R 17071 17073 16596 0 -1 4202496 1125 0 0 0 0 0 0 0 21 0 1 0 733803429 10420224 1068 33554432000 4194304 4409284 140734986169872 18446744073709551615 224284925696 0 0 4096 17506 0 0 0 17 0 0 0 0
/proc/17073/statm: 2544 1068 111 53 0 967 0

[startup+0.083464 s]
/proc/loadavg: 0.92 1.55 2.63 4/373 17073
/proc/meminfo: memFree=18245124/32951124 swapFree=45193364/67111528
[pid=17073] ppid=17071 vsize=15440 CPUtime=0.07 cores=0,2
/proc/17073/stat : 17073 (lingeling) R 17071 17073 16596 0 -1 4202496 2503 0 0 0 7 0 0 0 21 0 1 0 733803429 15810560 2385 33554432000 4194304 4409284 140734986169872 18446744073709551615 224284925696 0 0 4096 17506 0 0 0 17 0 0 0 0
/proc/17073/statm: 3860 2385 112 53 0 2283 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 15440

[startup+0.100421 s]
/proc/loadavg: 0.92 1.55 2.63 4/373 17073
/proc/meminfo: memFree=18245124/32951124 swapFree=45193364/67111528
[pid=17073] ppid=17071 vsize=19536 CPUtime=0.09 cores=0,2
/proc/17073/stat : 17073 (lingeling) R 17071 17073 16596 0 -1 4202496 3382 0 0 0 9 0 0 0 21 0 1 0 733803429 20004864 3264 33554432000 4194304 4409284 140734986169872 18446744073709551615 224284619869 0 0 4096 17506 0 0 0 17 0 0 0 0
/proc/17073/statm: 4884 3289 112 53 0 3307 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 19536

[startup+0.300408 s]
/proc/loadavg: 0.92 1.55 2.63 4/373 17073
/proc/meminfo: memFree=18245124/32951124 swapFree=45193364/67111528
[pid=17073] ppid=17071 vsize=21060 CPUtime=0.28 cores=0,2
/proc/17073/stat : 17073 (lingeling) R 17071 17073 16596 0 -1 4202496 5230 0 0 0 28 0 0 0 22 0 1 0 733803429 21565440 3774 33554432000 4194304 4409284 140734986169872 18446744073709551615 4278436 0 0 4096 17506 0 0 0 17 0 0 0 0
/proc/17073/statm: 5265 3774 128 53 0 3688 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 21060

[startup+0.7003 s]
/proc/loadavg: 0.92 1.55 2.63 4/373 17073
/proc/meminfo: memFree=18245124/32951124 swapFree=45193364/67111528
[pid=17073] ppid=17071 vsize=25156 CPUtime=0.68 cores=0,2
/proc/17073/stat : 17073 (lingeling) R 17071 17073 16596 0 -1 4202496 6258 0 0 0 68 0 0 0 23 0 1 0 733803429 25759744 4802 33554432000 4194304 4409284 140734986169872 18446744073709551615 4271656 0 0 4096 17506 0 0 0 17 0 0 0 0
/proc/17073/statm: 6289 4802 132 53 0 4712 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 25156

[startup+1.50021 s]
/proc/loadavg: 0.92 1.55 2.63 5/376 17105
/proc/meminfo: memFree=18205372/32951124 swapFree=45193364/67111528
[pid=17073] ppid=17071 vsize=28376 CPUtime=1.49 cores=0,2
/proc/17073/stat : 17073 (lingeling) R 17071 17073 16596 0 -1 4202496 7870 0 0 0 148 1 0 0 25 0 1 0 733803429 29057024 5615 33554432000 4194304 4409284 140734986169872 18446744073709551615 4246141 0 0 4096 17506 0 0 0 17 0 0 0 0
/proc/17073/statm: 7094 5615 136 53 0 5517 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 28376

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

[startup+2.30105 s]
/proc/loadavg: 0.92 1.55 2.63 6/379 17111
/proc/meminfo: memFree=18167560/32951124 swapFree=45193364/67111528
[pid=17073] ppid=17071 vsize=28376 CPUtime=2.29 cores=0,2
/proc/17073/stat : 17073 (lingeling) R 17071 17073 16596 0 -1 4202496 7870 0 0 0 228 1 0 0 25 0 1 0 733803429 29057024 5615 33554432000 4194304 4409284 140734986169872 18446744073709551615 4245822 0 0 4096 17506 0 0 0 17 0 0 0 0
/proc/17073/statm: 7094 5615 136 53 0 5517 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 28376

[startup+2.70098 s]
/proc/loadavg: 0.92 1.55 2.63 6/379 17111
/proc/meminfo: memFree=18167560/32951124 swapFree=45193364/67111528
[pid=17073] ppid=17071 vsize=28376 CPUtime=2.69 cores=0,2
/proc/17073/stat : 17073 (lingeling) R 17071 17073 16596 0 -1 4202496 7870 0 0 0 268 1 0 0 25 0 1 0 733803429 29057024 5615 33554432000 4194304 4409284 140734986169872 18446744073709551615 4314247 0 0 4096 17506 0 0 0 17 0 0 0 0
/proc/17073/statm: 7094 5615 136 53 0 5517 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 28376

[startup+2.80098 s]
/proc/loadavg: 0.92 1.55 2.63 6/379 17111
/proc/meminfo: memFree=18167560/32951124 swapFree=45193364/67111528
[pid=17073] ppid=17071 vsize=28376 CPUtime=2.79 cores=0,2
/proc/17073/stat : 17073 (lingeling) R 17071 17073 16596 0 -1 4202496 7870 0 0 0 278 1 0 0 25 0 1 0 733803429 29057024 5615 33554432000 4194304 4409284 140734986169872 18446744073709551615 4246723 0 0 4096 17506 0 0 0 17 0 0 0 0
/proc/17073/statm: 7094 5615 136 53 0 5517 0
Current children cumulated CPU time (s) 2.79
Current children cumulated vsize (KiB) 28376

Child status: 20
Real time (s): 2.85847
CPU time (s): 2.85556
CPU user time (s): 2.84057
CPU system time (s): 0.014997
CPU usage (%): 99.8984
Max. virtual memory (cumulated for all children) (KiB): 28376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.84057
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8898
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= 9

runsolver used 0.011998 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node118 at 2011-05-15 07:02:08
IDJOB=3371584
IDBENCH=85572
IDSOLVER=1849
FILE ID=node118/3371584-1305435727
RUNJOBID= node118-1305435727-17041
PBS_JOBID= 13324630
Free space on /tmp= 73324 MiB

SOLVER NAME= Lingeling 587f (fixed)
BENCH NAME= SAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
COMMAND LINE= lingeling BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3371584-1305435727/watcher-3371584-1305435727 -o /tmp/evaluation-result-3371584-1305435727/solver-3371584-1305435727 -C 2400 -W 1300 -M 7680  lingeling HOME/instance-3371584-1305435727.cnf

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

MD5SUM BENCH= 384c65902b197ca2c64d2ee8a3c64089
RANDOM SEED=1685068200

node118.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		: 2666.842
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	: 5333.68
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		: 2666.842
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		: 2666.842
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	: 5332.74
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		: 2666.842
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      18245404 kB
Buffers:        286732 kB
Cached:        4416312 kB
SwapCached:      22084 kB
Active:       11787844 kB
Inactive:      2615392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      18245404 kB
SwapTotal:    67111528 kB
SwapFree:     45193364 kB
Dirty:            4356 kB
Writeback:           0 kB
AnonPages:     9690508 kB
Mapped:          15004 kB
Slab:           147148 kB
PageTables:      90764 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 88677060 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= 73312 MiB
End job on node118 at 2011-05-15 07:02:11