Trace number 3290954

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
PicoSAT 941UNSAT 8.30574 8.3067

General information on the benchmark

Nameapplication/leberre/
2dimensionalstrippacking/E04N18.cnf
MD5SUM070544eadaf1d78ec6f23d6f8a90e54a
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.132979
Satisfiable
(Un)Satisfiability was proved
Number of variables7794
Number of clauses120068
Sum of the clauses size708976
Maximum clause length78
Minimum clause length1
Number of clauses of size 147
Number of clauses of size 220831
Number of clauses of size 316128
Number of clauses of size 47506
Number of clauses of size 516290
Number of clauses of size over 559266

Solver Data 

8.19/8.29	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-3290954-1303787171/watcher-3290954-1303787171 -o /tmp/evaluation-result-3290954-1303787171/solver-3290954-1303787171 -C 2400 -W 1300 -M 7680 picosat HOME/instance-3290954-1303787171.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: 4.46 3.38 3.38 4/187 2420
/proc/meminfo: memFree=16232596/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=2332 CPUtime=0 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 320 0 0 0 0 0 0 0 22 0 1 0 490316777 2387968 266 33554432000 134512640 134603332 4292059696 18446744073709551615 5453308 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 583 266 89 23 0 209 0

[startup+0.0223231 s]
/proc/loadavg: 4.46 3.38 3.38 4/187 2420
/proc/meminfo: memFree=16232596/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=3800 CPUtime=0.02 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 646 0 0 0 2 0 0 0 22 0 1 0 490316777 3891200 592 33554432000 134512640 134603332 4292059696 18446744073709551615 5453308 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 950 594 91 23 0 576 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3800

[startup+0.100316 s]
/proc/loadavg: 4.46 3.38 3.38 4/187 2420
/proc/meminfo: memFree=16232596/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=8016 CPUtime=0.09 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 1748 0 0 0 9 0 0 0 22 0 1 0 490316777 8208384 1694 33554432000 134512640 134603332 4292059696 18446744073709551615 134550674 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 2004 1694 98 23 0 1630 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8016

[startup+0.300278 s]
/proc/loadavg: 4.46 3.38 3.38 4/187 2420
/proc/meminfo: memFree=16232596/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=8436 CPUtime=0.29 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 1847 0 0 0 29 0 0 0 23 0 1 0 490316777 8638464 1793 33554432000 134512640 134603332 4292059696 18446744073709551615 134565413 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 2109 1793 98 23 0 1735 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8436

[startup+0.700203 s]
/proc/loadavg: 4.46 3.38 3.38 4/187 2420
/proc/meminfo: memFree=16232596/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=9492 CPUtime=0.69 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 2094 0 0 0 69 0 0 0 25 0 1 0 490316777 9719808 2040 33554432000 134512640 134603332 4292059696 18446744073709551615 134550831 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 2373 2041 98 23 0 1999 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9492

[startup+1.50109 s]
/proc/loadavg: 4.46 3.38 3.38 6/188 2421
/proc/meminfo: memFree=16223296/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=11604 CPUtime=1.49 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 2609 0 0 0 149 0 0 0 25 0 1 0 490316777 11882496 2555 33554432000 134512640 134603332 4292059696 18446744073709551615 5453308 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 2901 2555 98 23 0 2527 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11604

[startup+3.10082 s]
/proc/loadavg: 4.50 3.41 3.39 5/188 2422
/proc/meminfo: memFree=16220072/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=14640 CPUtime=3.09 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 3408 0 0 0 308 1 0 0 25 0 1 0 490316777 14991360 3354 33554432000 134512640 134603332 4292059696 18446744073709551615 5453308 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 3660 3354 98 23 0 3286 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 14640

[startup+6.30026 s]
/proc/loadavg: 4.50 3.41 3.39 5/188 2422
/proc/meminfo: memFree=16210668/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=18596 CPUtime=6.29 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 4350 0 0 0 628 1 0 0 25 0 1 0 490316777 19042304 4296 33554432000 134512640 134603332 4292059696 18446744073709551615 5453308 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 4649 4296 98 23 0 4275 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18596

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

[startup+7.1011 s]
/proc/loadavg: 4.46 3.42 3.39 5/188 2422
/proc/meminfo: memFree=16207444/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=19520 CPUtime=7.09 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 4601 0 0 0 708 1 0 0 25 0 1 0 490316777 19988480 4547 33554432000 134512640 134603332 4292059696 18446744073709551615 134566526 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 4880 4547 98 23 0 4506 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 19520

[startup+7.901 s]
/proc/loadavg: 4.46 3.42 3.39 5/188 2422
/proc/meminfo: memFree=16204176/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=20444 CPUtime=7.89 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 4850 0 0 0 787 2 0 0 25 0 1 0 490316777 20934656 4796 33554432000 134512640 134603332 4292059696 18446744073709551615 134550948 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 5111 4796 98 23 0 4737 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 20444

[startup+8.30089 s]
/proc/loadavg: 4.46 3.42 3.39 5/188 2422
/proc/meminfo: memFree=16204176/32951132 swapFree=67111528/67111528
[pid=2420] ppid=2418 vsize=20712 CPUtime=8.29 cores=0,2
/proc/2420/stat : 2420 (picosat) R 2418 2420 524 0 -1 4202496 4890 0 0 0 827 2 0 0 25 0 1 0 490316777 21209088 4836 33554432000 134512640 134603332 4292059696 18446744073709551615 5447742 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/2420/statm: 5178 4836 100 23 0 4804 0
Current children cumulated CPU time (s) 8.29
Current children cumulated vsize (KiB) 20712

Child status: 20
Real time (s): 8.3067
CPU time (s): 8.30574
CPU user time (s): 8.28374
CPU system time (s): 0.021996
CPU usage (%): 99.9884
Max. virtual memory (cumulated for all children) (KiB): 20712

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.28374
system time used= 0.021996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4891
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= 3
involuntary context switches= 11

runsolver used 0.026995 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node131 at 2011-04-26 05:06:11
IDJOB=3290954
IDBENCH=83457
IDSOLVER=1604
FILE ID=node131/3290954-1303787171
RUNJOBID= node131-1303787135-2347
PBS_JOBID= 13157225
Free space on /tmp= 71652 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT11/application/leberre/2dimensionalstrippacking/E04N18.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3290954-1303787171/watcher-3290954-1303787171 -o /tmp/evaluation-result-3290954-1303787171/solver-3290954-1303787171 -C 2400 -W 1300 -M 7680  picosat HOME/instance-3290954-1303787171.cnf

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

MD5SUM BENCH= 070544eadaf1d78ec6f23d6f8a90e54a
RANDOM SEED=1975762522

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:      16232628 kB
Buffers:       1013276 kB
Cached:       14891176 kB
SwapCached:          0 kB
Active:        5323564 kB
Inactive:     10875140 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      16232628 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           85716 kB
Writeback:           0 kB
AnonPages:      293976 kB
Mapped:          15940 kB
Slab:           455008 kB
PageTables:       5324 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   485088 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= 71652 MiB
End job on node131 at 2011-04-26 05:06:20