Trace number 3366055

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
SAT09 reference solver:precosat 236UNSAT 0.18897 0.194564

General information on the benchmark

NameSAT02/industrial/goldberg/rand_net/
rand_net60-30-1.shuffled.cnf
MD5SUM4297b314a32658522bc6751e20d6be5c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables3600
Number of clauses10681
Sum of the clauses size25140
Maximum clause length60
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 26960
Number of clauses of size 33720
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 51

Solver Data 

0.00/0.01	c PicoSATLight Version 236 3e7a3f8825c0b9e241f38a63fee5517540b2feca
0.00/0.01	c Copyright (C) 2009, Armin Biere, JKU, Linz, Austria.  All rights reserved.
0.00/0.01	c Released on Sun Mar 22 10:16:26 CET 2009
0.00/0.01	c Compiled on Tue Mar 24 21:24:39 CET 2009
0.00/0.01	c g++ (GCC) 4.3.2 20081105 (Red Hat 4.3.2-7)
0.00/0.01	c -O3 -m32 -static -Wall -Wextra -DNDEBUG -DNLOGPRECO -DNSTATSPRECO
0.00/0.01	c -finline-limit=10000000 -fomit-frame-pointer -fno-exceptions
0.00/0.01	c Linux baghera 2.6.27.19-170.2.35.fc10.i686.PAE i686
0.00/0.01	c
0.00/0.01	c reading HOME/instance-3366055-1305324584.cnf
0.00/0.01	c found header 'p cnf 3600 10681'
0.00/0.01	c finished parsing
0.00/0.01	c
0.00/0.01	c --check=0 --verbose=0 --order=3 --simprd=40 --merge=1 --hash=1
0.00/0.01	c --dominate=1 --restart=1 --restartint=100 --rebias=1 --rebiasint=1000
0.00/0.01	c --probe=1 --probeint=100000 --probeprd=10 --decompose=1 --minimize=3
0.00/0.01	c --maxdepth=1000 --strength=10 --elim=1 --elimint=300000 --elimprd=20
0.00/0.01	c --subst=1 --ands=1 --xors=1 --ites=1 --minlimit=1000 --maxlimit=10000000
0.00/0.01	c --random=1 --spread=2000 --seed=0 --skip=25
0.00/0.01	c
0.00/0.01	c sizeof     vars[0] = 16   alignment = 0       0 MB
0.00/0.01	c sizeof     orgs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof     occs[0] =  8   alignment = 0       0 MB
0.00/0.01	c sizeof iirfs[0..1] =  8   alignment = 0       0 MB
0.00/0.01	c
0.00/0.01	c starting search after 0.0 seconds
0.00/0.01	c no decision limit
0.00/0.01	c
0.00/0.01	c       original/binary      fixed     eliminated      learned       agility
0.00/0.01	c   seconds        variables     equivalent    conflicts       height       MB
0.00/0.01	c
0.00/0.01	c *    0.0    10681    3600      0     0      0       0      0    0.0   0    1
0.09/0.13	c s    0.1    10533     957      0  1042   1601       0      0    0.0   0    1
0.09/0.13	c l    0.1    10533     957      0  1042   1601       0   2858    0.0   0    1
0.09/0.14	c R    0.1    10709     949      0  1050   1601     100     81   18.5  14    1
0.09/0.14	c R    0.1    10746     942      0  1057   1601     201    179   16.1  23    1
0.09/0.18	c B    0.2    11379     903     15  1081   1601    1002    945   11.5  20    1
0.09/0.19	c 0    0.2    11720     381    552  1066   1601    1155   1074   10.9  19    1
0.09/0.19	c
0.09/0.19	s UNSATISFIABLE
0.09/0.19	c
0.09/0.19	c 1155 conflicts, 2052 decisions, 1 random
0.09/0.19	c 5 iterations, 7 restarts, 0 skipped
0.09/0.19	c 0 enlarged, 392 shrunken, 11 rescored, 1 rebiased
0.09/0.19	c 1 simplifications, 0 reductions
0.09/0.19	c
0.09/0.19	c vars: 552 fixed, 1066 equiv, 1601 elim, 1097 merged
0.09/0.19	c elim: 39044 resolutions, 1 phases, 1 rounds
0.09/0.19	c sbst: 93% substituted, 3.7% nots, 94.8% ands, 1.3% xors, 0.2% ites
0.09/0.19	c arty: 2.08 and 2.00 xor average arity
0.09/0.19	c prbe: 754 probed, 1 phases, 0 rounds
0.09/0.19	c prbe: 0 failed, 0 lifted, 745 merged
0.09/0.19	c sccs: 3 non trivial, 0 fixed, 3 merged
0.09/0.19	c hash: 0 units, 349 merged
0.09/0.19	c mins: 17733 learned, 42% deleted, 2 strong, 23 depth
0.09/0.19	c subs: 411 forward, 714 backward, 438 doms
0.09/0.19	c strs: 619 forward, 64 backward
0.09/0.19	c doms: 3848 dominators, 351 high, 47 low
0.09/0.19	c prps: 607791 propagations, 3.22 megaprops
0.09/0.19	c
0.09/0.19	c 0.2 seconds, 2 MB max, 1 MB recycled

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-3366055-1305324584/watcher-3366055-1305324584 -o /tmp/evaluation-result-3366055-1305324584/solver-3366055-1305324584 -C 5000 -W 5100 -M 15500 HOME/precosat HOME/instance-3366055-1305324584.cnf 

running on 4 cores: 0,2,4,6

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): 5100 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 3/354 5840
/proc/meminfo: memFree=21487660/32951124 swapFree=65581052/67111528
[pid=5840] ppid=5838 vsize=1144 CPUtime=0 cores=0,2,4,6
/proc/5840/stat : 5840 (precosat) R 5838 5840 5109 0 -1 4202496 210 0 0 0 0 0 0 0 25 0 1 0 644056099 1171456 168 33554432000 134512640 135151029 4287970416 18446744073709551615 134682502 0 0 4096 17442 0 0 0 17 0 0 0 0
/proc/5840/statm: 286 169 64 156 0 129 0

[startup+0.0911391 s]
/proc/loadavg: 2.00 2.00 2.00 3/354 5840
/proc/meminfo: memFree=21487660/32951124 swapFree=65581052/67111528
[pid=5840] ppid=5838 vsize=3024 CPUtime=0.08 cores=0,2,4,6
/proc/5840/stat : 5840 (precosat) R 5838 5840 5109 0 -1 4202496 785 0 0 0 8 0 0 0 25 0 1 0 644056099 3096576 644 33554432000 134512640 135151029 4287970416 18446744073709551615 134684993 0 0 4096 17442 0 0 0 17 0 0 0 0
/proc/5840/statm: 756 644 80 156 0 599 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3024

[startup+0.101136 s]
/proc/loadavg: 2.00 2.00 2.00 3/354 5840
/proc/meminfo: memFree=21487660/32951124 swapFree=65581052/67111528
[pid=5840] ppid=5838 vsize=3256 CPUtime=0.09 cores=0,2,4,6
/proc/5840/stat : 5840 (precosat) R 5838 5840 5109 0 -1 4202496 921 0 0 0 9 0 0 0 25 0 1 0 644056099 3334144 686 33554432000 134512640 135151029 4287970416 18446744073709551615 134561340 0 0 4096 17442 0 0 0 17 0 0 0 0
/proc/5840/statm: 814 686 80 156 0 657 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3256

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

Child status: 20
Real time (s): 0.194564
CPU time (s): 0.18897
CPU user time (s): 0.185971
CPU system time (s): 0.002999
CPU usage (%): 97.1249
Max. virtual memory (cumulated for all children) (KiB): 3256

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.185971
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 932
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= 1

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node137 at 2011-05-14 00:09:44
IDJOB=3366055
IDBENCH=88003
IDSOLVER=1843
FILE ID=node137/3366055-1305324584
RUNJOBID= node137-1305315243-5127
PBS_JOBID= 13324295
Free space on /tmp= 37844 MiB

SOLVER NAME= SAT09 reference solver:precosat 236
BENCH NAME= SAT02/industrial/goldberg/rand_net/rand_net60-30-1.shuffled.cnf
COMMAND LINE= HOME/precosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3366055-1305324584/watcher-3366055-1305324584 -o /tmp/evaluation-result-3366055-1305324584/solver-3366055-1305324584 -C 5000 -W 5100 -M 15500  HOME/precosat HOME/instance-3366055-1305324584.cnf

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

MD5SUM BENCH= 4297b314a32658522bc6751e20d6be5c
RANDOM SEED=197359277

node137.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		: 2666.844
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		: 2666.844
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		: 2666.844
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		: 2666.844
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	: 5332.74
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		: 2666.844
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		: 2666.844
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		: 2666.844
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	: 5332.83
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		: 2666.844
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:     32951124 kB
MemFree:      21487940 kB
Buffers:        216568 kB
Cached:        3556888 kB
SwapCached:      36328 kB
Active:        1561284 kB
Inactive:      9683280 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21487940 kB
SwapTotal:    67111528 kB
SwapFree:     65581052 kB
Dirty:             804 kB
Writeback:           0 kB
AnonPages:     7444448 kB
Mapped:          19668 kB
Slab:           114996 kB
PageTables:      39176 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 75949456 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= 37844 MiB
End job on node137 at 2011-05-14 00:09:44