Trace number 3362629

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 20.2389 20.239

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-18-U-10652.cnf
MD5SUMf0f11935e861485056485b47c5e1a7c3
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.08
Satisfiable
(Un)Satisfiability was proved
Number of variables1987351
Number of clauses5963534
Sum of the clauses size14253662
Maximum clause length1155
Minimum clause length1
Number of clauses of size 1109
Number of clauses of size 23971661
Number of clauses of size 31984242
Number of clauses of size 4766
Number of clauses of size 5765
Number of clauses of size over 55991

Solver Data 

3.09/20.20	WARNING: for repeatability, setting FPU to use double precision
3.09/20.20	============================[ Problem Statistics ]=============================
3.09/20.20	|                                                                             |
3.09/20.20	|  Number of variables:       1987351                                         |
3.09/20.20	|  Number of clauses:         5908940                                         |
3.09/20.20	|  Parse time:                   2.83 s                                       |
3.09/20.20	|  Eliminated clauses:          59.80 Mb                                      |
3.09/20.20	|  Simplification time:         15.92 s                                       |
3.09/20.20	|                                                                             |
3.09/20.20	============================[ Search Statistics ]==============================
3.09/20.20	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
3.09/20.20	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
3.09/20.20	===============================================================================
3.09/20.20	|       100 |  323759  2223866  7381547 |   815417       98     71 |  4.096 % |
3.09/20.20	|       250 |  323620  2223866  7381547 |   896959      247     75 |  4.103 % |
3.09/20.20	|       475 |  323416  2223866  7381547 |   986655      469     77 |  4.114 % |
3.09/20.20	===============================================================================
3.09/20.20	restarts              : 4
3.09/20.20	conflicts             : 491            (25 /sec)
3.09/20.20	decisions             : 4728           (0.00 % random) (240 /sec)
3.09/20.20	propagations          : 4182576        (212238 /sec)
3.09/20.20	conflict literals     : 37499          (13.90 % deleted)
3.09/20.20	Memory used           : 971.00 MB
3.09/20.20	CPU time              : 19.707 s
3.09/20.20	
3.09/20.20	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-3362629-1305309213/watcher-3362629-1305309213 -o /tmp/evaluation-result-3362629-1305309213/solver-3362629-1305309213 -C 2400 -W 1300 -M 7680 minisat_release HOME/instance-3362629-1305309213.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: 2.75 3.07 3.46 3/289 31082
/proc/meminfo: memFree=14154536/32951132 swapFree=67093824/67111528
[pid=31082] ppid=31080 vsize=24956 CPUtime=0 cores=0,2
/proc/31082/stat : 31082 (minisat_release) R 31080 31082 30738 0 -1 4202496 2041 0 0 0 0 0 0 0 23 0 1 0 642521211 25554944 1929 33554432000 4194304 4291037 140736079144320 18446744073709551615 4240897 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/31082/statm: 6239 1929 216 24 0 2873 0

[startup+0.0665069 s]
/proc/loadavg: 2.75 3.07 3.46 3/289 31082
/proc/meminfo: memFree=14154536/32951132 swapFree=67093824/67111528
[pid=31082] ppid=31080 vsize=75736 CPUtime=0.06 cores=0,2
/proc/31082/stat : 31082 (minisat_release) R 31080 31082 30738 0 -1 4202496 11769 0 0 0 5 1 0 0 23 0 1 0 642521211 77553664 11602 33554432000 4194304 4291037 140736079144320 18446744073709551615 4240897 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/31082/statm: 18934 11606 216 24 0 15568 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 75736

[startup+0.100502 s]
/proc/loadavg: 2.75 3.07 3.46 3/289 31082
/proc/meminfo: memFree=14154536/32951132 swapFree=67093824/67111528
[pid=31082] ppid=31080 vsize=103536 CPUtime=0.09 cores=0,2
/proc/31082/stat : 31082 (minisat_release) R 31080 31082 30738 0 -1 4202496 17091 0 0 0 7 2 0 0 23 0 1 0 642521211 106020864 16924 33554432000 4194304 4291037 140736079144320 18446744073709551615 4277473 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/31082/statm: 25884 16932 216 24 0 22518 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 103536

[startup+0.300487 s]
/proc/loadavg: 2.75 3.07 3.46 3/289 31082
/proc/meminfo: memFree=14154536/32951132 swapFree=67093824/67111528
[pid=31082] ppid=31080 vsize=241916 CPUtime=0.29 cores=0,2
/proc/31082/stat : 31082 (minisat_release) R 31080 31082 30738 0 -1 4202496 46111 0 0 0 23 6 0 0 25 0 1 0 642521211 247721984 45930 33554432000 4194304 4291037 140736079144320 18446744073709551615 274664469189 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/31082/statm: 60479 45932 216 24 0 57113 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 241916

[startup+0.700405 s]
/proc/loadavg: 2.75 3.07 3.46 3/289 31082
/proc/meminfo: memFree=14154536/32951132 swapFree=67093824/67111528
[pid=31082] ppid=31080 vsize=303512 CPUtime=0.69 cores=0,2
/proc/31082/stat : 31082 (minisat_release) R 31080 31082 30738 0 -1 4202496 67190 0 0 0 59 10 0 0 25 0 1 0 642521211 310796288 64256 33554432000 4194304 4291037 140736079144320 18446744073709551615 274664469189 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/31082/statm: 75878 64258 216 24 0 72512 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 303512

[startup+1.50024 s]
/proc/loadavg: 2.75 3.07 3.46 5/290 31083
/proc/meminfo: memFree=13820644/32951132 swapFree=67093824/67111528
[pid=31082] ppid=31080 vsize=442056 CPUtime=1.49 cores=0,2
/proc/31082/stat : 31082 (minisat_release) R 31080 31082 30738 0 -1 4202496 107862 0 0 0 133 16 0 0 25 0 1 0 642521211 452665344 98339 33554432000 4194304 4291037 140736079144320 18446744073709551615 4277897 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/31082/statm: 110514 98340 216 24 0 107148 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 442056

[startup+3.10098 s]
/proc/loadavg: 2.75 3.07 3.46 5/290 31083
/proc/meminfo: memFree=13631048/32951132 swapFree=67093824/67111528
[pid=31082] ppid=31080 vsize=722708 CPUtime=3.09 cores=0,2
/proc/31082/stat : 31082 (minisat_release) R 31080 31082 30738 0 -1 4202496 183111 0 0 0 282 27 0 0 25 0 1 0 642521211 740052992 161716 33554432000 4194304 4291037 140736079144320 18446744073709551615 4255649 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/31082/statm: 180677 161717 216 24 0 177311 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 722708

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

Child status: 20
Real time (s): 20.239
CPU time (s): 20.2389
CPU user time (s): 19.707
CPU system time (s): 0.531919
CPU usage (%): 99.9994
Max. virtual memory (cumulated for all children) (KiB): 722708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.707
system time used= 0.531919
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 308996
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= 5
involuntary context switches= 26

runsolver used 0.012998 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node131 at 2011-05-13 19:53:36
IDJOB=3362629
IDBENCH=88172
IDSOLVER=1840
FILE ID=node131/3362629-1305309213
RUNJOBID= node131-1305309213-31053
PBS_JOBID= 13321477
Free space on /tmp= 52416 MiB

SOLVER NAME= minisat hack reference: minisat 2.2.0
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-18-U-10652.cnf
COMMAND LINE= minisat_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3362629-1305309213/watcher-3362629-1305309213 -o /tmp/evaluation-result-3362629-1305309213/solver-3362629-1305309213 -C 2400 -W 1300 -M 7680  minisat_release HOME/instance-3362629-1305309213.cnf

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

MD5SUM BENCH= f0f11935e861485056485b47c5e1a7c3
RANDOM SEED=492608620

node131.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	: 5332.83
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.77
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		: 2666.830
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      14154568 kB
Buffers:        232040 kB
Cached:        8178064 kB
SwapCached:       1504 kB
Active:       10967688 kB
Inactive:      7460792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      14154568 kB
SwapTotal:    67111528 kB
SwapFree:     67093824 kB
Dirty:          176820 kB
Writeback:           0 kB
AnonPages:    10016672 kB
Mapped:          26752 kB
Slab:           273232 kB
PageTables:      32168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 28382116 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 52416 MiB
End job on node131 at 2011-05-13 19:53:57