Trace number 3420250

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
minisat hack reference: minisat 2.2.0UNSAT 2.91056 2.91284

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-25-U-7061.cnf
MD5SUM23c04ef615431bf15ef9eafe9b944fb8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.79273
Satisfiable
(Un)Satisfiability was proved
Number of variables541150
Number of clauses1645836
Sum of the clauses size4001876
Maximum clause length1576
Minimum clause length1
Number of clauses of size 1141
Number of clauses of size 21092306
Number of clauses of size 3543262
Number of clauses of size 44256
Number of clauses of size 51339
Number of clauses of size over 54532

Solver Data 

2.89/2.90	WARNING: for repeatability, setting FPU to use double precision
2.89/2.90	============================[ Problem Statistics ]=============================
2.89/2.90	|                                                                             |
2.89/2.90	|  Number of variables:        541150                                         |
2.89/2.90	|  Number of clauses:         1576290                                         |
2.89/2.90	|  Parse time:                   0.69 s                                       |
2.89/2.90	|  Eliminated clauses:           9.79 Mb                                      |
2.89/2.90	|  Simplification time:          2.11 s                                       |
2.89/2.90	|                                                                             |
2.89/2.90	===============================================================================
2.89/2.90	Solved by simplification
2.89/2.90	restarts              : 0
2.89/2.90	conflicts             : 0              (0 /sec)
2.89/2.90	decisions             : 0              ( nan % random) (0 /sec)
2.89/2.90	propagations          : 34400          (12257 /sec)
2.89/2.90	conflict literals     : 0              ( nan % deleted)
2.89/2.90	Memory used           : 275.00 MB
2.89/2.90	CPU time              : 2.80657 s
2.89/2.90	
2.89/2.90	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-3420250-1306590906/watcher-3420250-1306590906 -o /tmp/evaluation-result-3420250-1306590906/solver-3420250-1306590906 -C 5000 -W 5100 -M 15500 minisat_release HOME/instance-3420250-1306590906.cnf 

running on 4 cores: 1,3,5,7

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: 2.01 2.03 2.00 3/515 31835
/proc/meminfo: memFree=9584076/32950928 swapFree=67074476/67111528
[pid=31835] ppid=31833 vsize=32612 CPUtime=0 cores=1,3,5,7
/proc/31835/stat : 31835 (minisat_release) R 31833 31835 30993 0 -1 4202496 3376 0 0 0 0 0 0 0 22 0 1 0 849321368 33394688 3318 33554432000 4194304 4291037 140735890927760 18446744073709551615 4240897 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/31835/statm: 8153 3321 216 24 0 4787 0

[startup+0.0267409 s]
/proc/loadavg: 2.01 2.03 2.00 3/515 31835
/proc/meminfo: memFree=9584076/32950928 swapFree=67074476/67111528
[pid=31835] ppid=31833 vsize=39516 CPUtime=0.01 cores=1,3,5,7
/proc/31835/stat : 31835 (minisat_release) R 31833 31835 30993 0 -1 4202496 5071 0 0 0 1 0 0 0 22 0 1 0 849321368 40464384 5000 33554432000 4194304 4291037 140735890927760 18446744073709551615 4277473 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/31835/statm: 9879 5010 216 24 0 6513 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 39516

[startup+0.100725 s]
/proc/loadavg: 2.01 2.03 2.00 3/515 31835
/proc/meminfo: memFree=9584076/32950928 swapFree=67074476/67111528
[pid=31835] ppid=31833 vsize=86456 CPUtime=0.08 cores=1,3,5,7
/proc/31835/stat : 31835 (minisat_release) R 31833 31835 30993 0 -1 4202496 14406 0 0 0 7 1 0 0 22 0 1 0 849321368 88530944 14261 33554432000 4194304 4291037 140735890927760 18446744073709551615 4277897 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/31835/statm: 21614 14262 216 24 0 18248 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 86456

[startup+0.300694 s]
/proc/loadavg: 2.01 2.03 2.00 3/515 31835
/proc/meminfo: memFree=9584076/32950928 swapFree=67074476/67111528
[pid=31835] ppid=31833 vsize=121560 CPUtime=0.29 cores=1,3,5,7
/proc/31835/stat : 31835 (minisat_release) R 31833 31835 30993 0 -1 4202496 24953 0 0 0 26 3 0 0 23 0 1 0 849321368 124477440 23083 33554432000 4194304 4291037 140735890927760 18446744073709551615 4277998 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/31835/statm: 30390 23084 216 24 0 27024 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 121560

[startup+0.700612 s]
/proc/loadavg: 2.01 2.03 2.00 3/515 31835
/proc/meminfo: memFree=9584076/32950928 swapFree=67074476/67111528
[pid=31835] ppid=31833 vsize=197540 CPUtime=0.68 cores=1,3,5,7
/proc/31835/stat : 31835 (minisat_release) R 31833 31835 30993 0 -1 4202496 45511 0 0 0 63 5 0 0 25 0 1 0 849321368 202280960 40969 33554432000 4194304 4291037 140735890927760 18446744073709551615 4277998 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/31835/statm: 49385 40971 216 24 0 46019 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 197540

[startup+1.50046 s]
/proc/loadavg: 2.01 2.03 2.00 3/516 31836
/proc/meminfo: memFree=9405792/32950928 swapFree=67074476/67111528
[pid=31835] ppid=31833 vsize=211928 CPUtime=1.48 cores=1,3,5,7
/proc/31835/stat : 31835 (minisat_release) R 31833 31835 30993 0 -1 4202496 51401 0 0 0 142 6 0 0 25 0 1 0 849321368 217014272 45177 33554432000 4194304 4291037 140735890927760 18446744073709551615 4220528 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/31835/statm: 52982 45178 239 24 0 49616 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 211928

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

[startup+2.30033 s]
/proc/loadavg: 2.01 2.03 2.00 3/516 31836
/proc/meminfo: memFree=9370452/32950928 swapFree=67074476/67111528
[pid=31835] ppid=31833 vsize=282324 CPUtime=2.29 cores=1,3,5,7
/proc/31835/stat : 31835 (minisat_release) R 31833 31835 30993 0 -1 4202496 63176 0 0 0 221 8 0 0 25 0 1 0 849321368 289099776 55926 33554432000 4194304 4291037 140735890927760 18446744073709551615 4210306 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/31835/statm: 70581 55928 239 24 0 67215 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 282324

[startup+2.70125 s]
/proc/loadavg: 2.01 2.03 2.00 3/516 31836
/proc/meminfo: memFree=9370452/32950928 swapFree=67074476/67111528
[pid=31835] ppid=31833 vsize=237900 CPUtime=2.68 cores=1,3,5,7
/proc/31835/stat : 31835 (minisat_release) R 31833 31835 30993 0 -1 4202496 67890 0 0 0 260 8 0 0 25 0 1 0 849321368 243609600 50471 33554432000 4194304 4291037 140735890927760 18446744073709551615 256415056760 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/31835/statm: 59475 50472 239 24 0 56109 0
Current children cumulated CPU time (s) 2.68
Current children cumulated vsize (KiB) 237900

[startup+2.9002 s]
/proc/loadavg: 2.01 2.03 2.00 3/516 31836
/proc/meminfo: memFree=9370452/32950928 swapFree=67074476/67111528
[pid=31835] ppid=31833 vsize=229900 CPUtime=2.89 cores=1,3,5,7
/proc/31835/stat : 31835 (minisat_release) R 31833 31835 30993 0 -1 4202496 72507 0 0 0 280 9 0 0 25 0 1 0 849321368 235417600 47892 33554432000 4194304 4291037 140735890927760 18446744073709551615 4258741 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/31835/statm: 57475 47892 239 24 0 54109 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 229900

Child status: 20
Real time (s): 2.91284
CPU time (s): 2.91056
CPU user time (s): 2.80657
CPU system time (s): 0.103984
CPU usage (%): 99.9217
Max. virtual memory (cumulated for all children) (KiB): 282324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.80657
system time used= 0.103984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 72523
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= 3

runsolver used 0.008998 second user time and 0.048992 second system time

The end

Launcher Data 

Begin job on node115 at 2011-05-28 15:55:07
IDJOB=3420250
IDBENCH=88185
IDSOLVER=1912
FILE ID=node115/3420250-1306590906
RUNJOBID= node115-1306579395-31012
PBS_JOBID= 13471565
Free space on /tmp= 73040 MiB

SOLVER NAME= minisat hack reference: minisat 2.2.0
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-25-U-7061.cnf
COMMAND LINE= minisat_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3420250-1306590906/watcher-3420250-1306590906 -o /tmp/evaluation-result-3420250-1306590906/solver-3420250-1306590906 -C 5000 -W 5100 -M 15500  minisat_release HOME/instance-3420250-1306590906.cnf

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

MD5SUM BENCH= 23c04ef615431bf15ef9eafe9b944fb8
RANDOM SEED=484457227

node115.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		: 2666.811
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	: 5333.62
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		: 2666.811
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	: 5226.15
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		: 2666.811
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		: 2666.811
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		: 2666.811
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	: 5332.77
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		: 2666.811
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	: 5332.74
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		: 2666.811
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		: 2666.811
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:       9584356 kB
Buffers:        167272 kB
Cached:        3867204 kB
SwapCached:       5152 kB
Active:       15867668 kB
Inactive:      7164696 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       9584356 kB
SwapTotal:    67111528 kB
SwapFree:     67074476 kB
Dirty:           32032 kB
Writeback:           0 kB
AnonPages:    18996376 kB
Mapped:          41632 kB
Slab:           184908 kB
PageTables:      78776 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 153542792 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= 73040 MiB
End job on node115 at 2011-05-28 15:55:10