Trace number 3265362

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
RestartSAT A75UNSAT 0.451931 0.452604

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 

0.39/0.45	c WARNING: for repeatability, setting FPU to use double precision
0.39/0.45	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: 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-3265362-1303578487/watcher-3265362-1303578487 -o /tmp/evaluation-result-3265362-1303578487/solver-3265362-1303578487 -C 2400 -W 1300 -M 7680 HOME/RestartSAT -rfirst=1 -var-decay=0.75 HOME/instance-3265362-1303578487.cnf 

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: 4.01 4.00 3.79 4/187 7611
/proc/meminfo: memFree=14396388/32950928 swapFree=67087032/67111528
[pid=7611] ppid=7609 vsize=23268 CPUtime=0 cores=4,6
/proc/7611/stat : 7611 (RestartSAT) R 7609 7611 7393 0 -1 4202496 1464 0 0 0 0 0 0 0 21 0 1 0 469445785 23826432 1405 33554432000 4194304 4291949 140734811262880 18446744073709551615 4277761 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/7611/statm: 5817 1407 226 24 0 2451 0

[startup+0.0403321 s]
/proc/loadavg: 4.01 4.00 3.79 4/187 7611
/proc/meminfo: memFree=14396388/32950928 swapFree=67087032/67111528
[pid=7611] ppid=7609 vsize=31368 CPUtime=0.03 cores=4,6
/proc/7611/stat : 7611 (RestartSAT) R 7609 7611 7393 0 -1 4202496 3326 0 0 0 3 0 0 0 21 0 1 0 469445785 32120832 3214 33554432000 4194304 4291949 140734811262880 18446744073709551615 239476355781 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/7611/statm: 7842 3215 227 24 0 4476 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 31368

[startup+0.100302 s]
/proc/loadavg: 4.01 4.00 3.79 4/187 7611
/proc/meminfo: memFree=14396388/32950928 swapFree=67087032/67111528
[pid=7611] ppid=7609 vsize=34944 CPUtime=0.09 cores=4,6
/proc/7611/stat : 7611 (RestartSAT) R 7609 7611 7393 0 -1 4202496 4625 0 0 0 9 0 0 0 21 0 1 0 469445785 35782656 4411 33554432000 4194304 4291949 140734811262880 18446744073709551615 4277165 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/7611/statm: 8736 4413 228 24 0 5370 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 34944

[startup+0.300267 s]
/proc/loadavg: 4.01 4.00 3.79 4/187 7611
/proc/meminfo: memFree=14396388/32950928 swapFree=67087032/67111528
[pid=7611] ppid=7609 vsize=37180 CPUtime=0.29 cores=4,6
/proc/7611/stat : 7611 (RestartSAT) R 7609 7611 7393 0 -1 4202496 6628 0 0 0 28 1 0 0 22 0 1 0 469445785 38072320 5280 33554432000 4194304 4291949 140734811262880 18446744073709551615 4278286 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/7611/statm: 9295 5280 234 24 0 5929 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 37180

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

[startup+0.401251 s]
/proc/loadavg: 4.01 4.00 3.79 4/187 7611
/proc/meminfo: memFree=14396388/32950928 swapFree=67087032/67111528
[pid=7611] ppid=7609 vsize=37440 CPUtime=0.39 cores=4,6
/proc/7611/stat : 7611 (RestartSAT) R 7609 7611 7393 0 -1 4202496 7318 0 0 0 38 1 0 0 22 0 1 0 469445785 38338560 5328 33554432000 4194304 4291949 140734811262880 18446744073709551615 239476353780 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/7611/statm: 9360 5328 234 24 0 5994 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 37440

Child status: 20
Real time (s): 0.452604
CPU time (s): 0.451931
CPU user time (s): 0.438933
CPU system time (s): 0.012998
CPU usage (%): 99.8513
Max. virtual memory (cumulated for all children) (KiB): 37440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.438933
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7363
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= 1

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node148 at 2011-04-23 19:08:07
IDJOB=3265362
IDBENCH=85572
IDSOLVER=1581
FILE ID=node148/3265362-1303578487
RUNJOBID= node148-1303577183-7412
PBS_JOBID= 13150324
Free space on /tmp= 70592 MiB

SOLVER NAME= RestartSAT A75
BENCH NAME= SAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
COMMAND LINE= HOME/RestartSAT -rfirst=1 -var-decay=0.75 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3265362-1303578487/watcher-3265362-1303578487 -o /tmp/evaluation-result-3265362-1303578487/solver-3265362-1303578487 -C 2400 -W 1300 -M 7680  HOME/RestartSAT -rfirst=1 -var-decay=0.75 HOME/instance-3265362-1303578487.cnf

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

MD5SUM BENCH= 384c65902b197ca2c64d2ee8a3c64089
RANDOM SEED=1645055514

node148.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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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		: 2666.854
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		: 2666.854
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:     32950928 kB
MemFree:      14396792 kB
Buffers:       2044752 kB
Cached:       15736568 kB
SwapCached:       5264 kB
Active:        9049936 kB
Inactive:      8945276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      14396792 kB
SwapTotal:    67111528 kB
SwapFree:     67087032 kB
Dirty:            4364 kB
Writeback:           0 kB
AnonPages:      209940 kB
Mapped:          14176 kB
Slab:           494328 kB
PageTables:       5340 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   438608 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= 70592 MiB
End job on node148 at 2011-04-23 19:08:08