Trace number 3501175

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
PicoGCNF 941UNSAT 4.56431 4.56471

General information on the benchmark

Namegmus/nadel/
edn_22134_4.cnf_0.14000000.unsat.gcnf
MD5SUMc3b3bc71f0a7066bbeff8355a3fe11e2
Bench CategoryGMUS (GMUS)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.639902
Satisfiable
(Un)Satisfiability was proved
Number of variables331251
Number of clauses962139
Sum of the clauses size2231636
Maximum clause length3
Minimum clause length1
Number of clauses of size 11758
Number of clauses of size 2651265
Number of clauses of size 3309116
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50
Number of groups4030
Number of clauses in the kernel (group 0)930415
Least number of clauses in a group (except group 0) 1
Greatest number of clauses in a group (except group 0) 10

Solver Data 

1.39/1.40	c [picogcnf] 1.41 seconds: first call to SAT solver returned
1.39/1.40	s UNSATISFIABLE
1.39/1.40	c [picogcnf] 1.41 seconds: <1> reduction to 2 out of 4030 (0%)
4.49/4.52	v 416 3269 0
4.49/4.52	c [picogcnf] 4.53 seconds: max memory 48.7 MB
4.49/4.56	c [picogcnf] 4.56 seconds: 1 reductions

Verifier Data 

OK	2

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

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-3501175-1308041837/watcher-3501175-1308041837 -o /tmp/evaluation-result-3501175-1308041837/solver-3501175-1308041837 -C 1800 -W 1850 -M 7680 picogcnf HOME/instance-3501175-1308041837.gcnf 

running on 2 cores: 4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1850 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: 1.72 2.59 3.02 4/189 25480
/proc/meminfo: memFree=15691176/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=1352 CPUtime=0 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 266 0 0 0 0 0 0 0 22 0 1 0 896599972 1384448 220 33554432000 134512640 135066516 4292522464 18446744073709551615 134696143 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 338 222 55 136 0 201 0

[startup+0.025144 s]
/proc/loadavg: 1.72 2.59 3.02 4/189 25480
/proc/meminfo: memFree=15691176/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=3724 CPUtime=0.02 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 797 0 0 0 2 0 0 0 22 0 1 0 896599972 3813376 751 33554432000 134512640 135066516 4292522464 18446744073709551615 134537241 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 931 751 56 136 0 794 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3724

[startup+0.101133 s]
/proc/loadavg: 1.72 2.59 3.02 4/189 25480
/proc/meminfo: memFree=15691176/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=10956 CPUtime=0.09 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 2433 0 0 0 9 0 0 0 23 0 1 0 896599972 11218944 2387 33554432000 134512640 135066516 4292522464 18446744073709551615 134680827 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 2739 2388 56 136 0 2602 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10956

[startup+0.301097 s]
/proc/loadavg: 1.72 2.59 3.02 4/189 25480
/proc/meminfo: memFree=15691176/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=28204 CPUtime=0.29 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 6788 0 0 0 28 1 0 0 23 0 1 0 896599972 28880896 6742 33554432000 134512640 135066516 4292522464 18446744073709551615 134700638 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 7051 6743 56 136 0 6914 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 28204

[startup+0.701024 s]
/proc/loadavg: 1.72 2.59 3.02 4/189 25480
/proc/meminfo: memFree=15691176/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=54964 CPUtime=0.69 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 13013 0 0 0 67 2 0 0 25 0 1 0 896599972 56283136 12966 33554432000 134512640 135066516 4292522464 18446744073709551615 134571900 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 13741 12966 60 136 0 13604 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 54964

[startup+1.50089 s]
/proc/loadavg: 1.72 2.59 3.02 5/190 25481
/proc/meminfo: memFree=15585296/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=55620 CPUtime=1.49 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 13173 0 0 0 147 2 0 0 25 0 1 0 896599972 56954880 13126 33554432000 134512640 135066516 4292522464 18446744073709551615 134545812 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 13905 13126 77 136 0 13768 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 55620

[startup+3.1006 s]
/proc/loadavg: 1.99 2.63 3.04 5/190 25481
/proc/meminfo: memFree=15582704/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=57156 CPUtime=3.09 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 13378 0 0 0 307 2 0 0 25 0 1 0 896599972 58527744 13331 33554432000 134512640 135066516 4292522464 18446744073709551615 134555389 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 14289 13331 77 136 0 14152 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 57156

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

[startup+3.90045 s]
/proc/loadavg: 1.99 2.63 3.04 5/190 25481
/proc/meminfo: memFree=15583696/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=57156 CPUtime=3.89 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 13383 0 0 0 387 2 0 0 25 0 1 0 896599972 58527744 13336 33554432000 134512640 135066516 4292522464 18446744073709551615 134555529 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 14289 13336 77 136 0 14152 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 57156

[startup+4.30039 s]
/proc/loadavg: 1.99 2.63 3.04 5/190 25481
/proc/meminfo: memFree=15587772/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=57156 CPUtime=4.3 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 13391 0 0 0 428 2 0 0 25 0 1 0 896599972 58527744 13344 33554432000 134512640 135066516 4292522464 18446744073709551615 134546116 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 14289 13344 77 136 0 14152 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 57156

[startup+4.50037 s]
/proc/loadavg: 1.99 2.63 3.04 5/190 25481
/proc/meminfo: memFree=15587772/32951124 swapFree=67050916/67111528
[pid=25480] ppid=25478 vsize=57156 CPUtime=4.49 cores=4,6
/proc/25480/stat : 25480 (picogcnf) R 25478 25480 14728 0 -1 4202496 13391 0 0 0 447 2 0 0 25 0 1 0 896599972 58527744 13344 33554432000 134512640 135066516 4292522464 18446744073709551615 134546174 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25480/statm: 14289 13344 77 136 0 14152 0
Current children cumulated CPU time (s) 4.49
Current children cumulated vsize (KiB) 57156

Child status: 20
Real time (s): 4.56471
CPU time (s): 4.56431
CPU user time (s): 4.53731
CPU system time (s): 0.026995
CPU usage (%): 99.9912
Max. virtual memory (cumulated for all children) (KiB): 57156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.53731
system time used= 0.026995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13393
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= 12

runsolver used 0.009998 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node146 at 2011-06-14 10:57:17
IDJOB=3501175
IDBENCH=89917
IDSOLVER=1999
FILE ID=node146/3501175-1308041837
RUNJOBID= node146-1308041831-25390
PBS_JOBID= 13563890
Free space on /tmp= 6316 MiB

SOLVER NAME= PicoGCNF 941
BENCH NAME= SAT11/gmus/nadel/edn_22134_4.cnf_0.14000000.unsat.gcnf
COMMAND LINE= picogcnf BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3501175-1308041837/watcher-3501175-1308041837 -o /tmp/evaluation-result-3501175-1308041837/solver-3501175-1308041837 -C 1800 -W 1850 -M 7680  picogcnf HOME/instance-3501175-1308041837.gcnf

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= c3b3bc71f0a7066bbeff8355a3fe11e2
RANDOM SEED=103030296

node146.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	: 5332.75
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	: 5332.86
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	: 5332.75
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      15692588 kB
Buffers:        168008 kB
Cached:       15990608 kB
SwapCached:      13448 kB
Active:        1369572 kB
Inactive:     15279416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15692588 kB
SwapTotal:    67111528 kB
SwapFree:     67050916 kB
Dirty:          245216 kB
Writeback:           0 kB
AnonPages:      488584 kB
Mapped:          10376 kB
Slab:           544376 kB
PageTables:       5736 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   763620 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= 6316 MiB
End job on node146 at 2011-06-14 10:57:22