Trace number 3300359

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
clasp 2.0-R4092-craftedUNSAT 2.26765 2.26835

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_3900_3900_060.shuffled.cnf
MD5SUM8fb426184fc34ee36ee1bb5e07551b2d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.369943
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses936
Sum of the clauses size4520
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 37
Number of clauses of size 4146
Number of clauses of size 5783
Number of clauses of size over 50

Solver Data 

0.00/0.00	c clasp version 2.0.0-RC2
0.00/0.00	c Reading from ...829635/instance-3300359-1303829635.cnf
0.00/0.00	c Solving...
2.20/2.26	s UNSATISFIABLE
2.20/2.26	
2.20/2.26	c Models        : 0     
2.20/2.26	c Time          : 2.266s (Solving: 2.26s 1st Model: 0.00s Unsat: 2.26s)
2.20/2.26	c CPU Time      : 2.260s

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-3300359-1303829635/watcher-3300359-1303829635 -o /tmp/evaluation-result-3300359-1303829635/solver-3300359-1303829635 -C 2400 -W 1300 -M 7680 HOME/clasp --sat-p=20,25,120,-1,0 --berk-max=512 --berk-once --otfs=1 --recursive-str --dinit=800,10000 --dsched=20000,1.1 --reverse-arcs=2 HOME/instance-3300359-1303829635.cnf 

running on 2 cores: 1,3

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: 3.39 3.87 3.79 1/174 6441
/proc/meminfo: memFree=26015592/32951124 swapFree=67051468/67111528
[pid=6441] ppid=6439 vsize=12460 CPUtime=0 cores=1,3
/proc/6441/stat : 6441 (clasp) R 6439 6441 5603 0 -1 4202496 496 0 0 0 0 0 0 0 22 0 1 0 494566307 12759040 436 33554432000 4194304 4929204 140733810550096 18446744073709551615 4329490 0 0 4096 18946 0 0 0 17 1 0 0 0
/proc/6441/statm: 3115 436 360 180 0 125 0

[startup+0.0699221 s]
/proc/loadavg: 3.39 3.87 3.79 1/174 6441
/proc/meminfo: memFree=26015592/32951124 swapFree=67051468/67111528
[pid=6441] ppid=6439 vsize=12592 CPUtime=0.06 cores=1,3
/proc/6441/stat : 6441 (clasp) R 6439 6441 5603 0 -1 4202496 551 0 0 0 6 0 0 0 22 0 1 0 494566307 12894208 491 33554432000 4194304 4929204 140733810550096 18446744073709551615 4315087 0 0 4096 18946 0 0 0 17 1 0 0 0
/proc/6441/statm: 3148 491 367 180 0 158 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12592

[startup+0.100914 s]
/proc/loadavg: 3.39 3.87 3.79 1/174 6441
/proc/meminfo: memFree=26015592/32951124 swapFree=67051468/67111528
[pid=6441] ppid=6439 vsize=12592 CPUtime=0.1 cores=1,3
/proc/6441/stat : 6441 (clasp) R 6439 6441 5603 0 -1 4202496 564 0 0 0 10 0 0 0 22 0 1 0 494566307 12894208 504 33554432000 4194304 4929204 140733810550096 18446744073709551615 4633836 0 0 4096 18946 0 0 0 17 1 0 0 0
/proc/6441/statm: 3148 504 367 180 0 158 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 12592

[startup+0.300878 s]
/proc/loadavg: 3.39 3.87 3.79 1/174 6441
/proc/meminfo: memFree=26015592/32951124 swapFree=67051468/67111528
[pid=6441] ppid=6439 vsize=12872 CPUtime=0.29 cores=1,3
/proc/6441/stat : 6441 (clasp) R 6439 6441 5603 0 -1 4202496 607 0 0 0 29 0 0 0 23 0 1 0 494566307 13180928 547 33554432000 4194304 4929204 140733810550096 18446744073709551615 4320400 0 0 4096 18946 0 0 0 17 1 0 0 0
/proc/6441/statm: 3218 547 367 180 0 228 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12872

[startup+0.700805 s]
/proc/loadavg: 3.39 3.87 3.79 1/174 6441
/proc/meminfo: memFree=26015592/32951124 swapFree=67051468/67111528
[pid=6441] ppid=6439 vsize=13144 CPUtime=0.69 cores=1,3
/proc/6441/stat : 6441 (clasp) R 6439 6441 5603 0 -1 4202496 673 0 0 0 69 0 0 0 25 0 1 0 494566307 13459456 613 33554432000 4194304 4929204 140733810550096 18446744073709551615 4316112 0 0 4096 18946 0 0 0 17 1 0 0 0
/proc/6441/statm: 3286 613 368 180 0 296 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13144

[startup+1.50066 s]
/proc/loadavg: 3.44 3.87 3.79 5/190 6472
/proc/meminfo: memFree=26006592/32951124 swapFree=67051468/67111528
[pid=6441] ppid=6439 vsize=13412 CPUtime=1.49 cores=1,3
/proc/6441/stat : 6441 (clasp) R 6439 6441 5603 0 -1 4202496 757 0 0 0 149 0 0 0 25 0 1 0 494566307 13733888 697 33554432000 4194304 4929204 140733810550096 18446744073709551615 4633792 0 0 4096 18946 0 0 0 17 1 0 0 0
/proc/6441/statm: 3353 697 368 180 0 363 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13412

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

[startup+1.90059 s]
/proc/loadavg: 3.44 3.87 3.79 5/190 6472
/proc/meminfo: memFree=26006592/32951124 swapFree=67051468/67111528
[pid=6441] ppid=6439 vsize=13544 CPUtime=1.89 cores=1,3
/proc/6441/stat : 6441 (clasp) R 6439 6441 5603 0 -1 4202496 787 0 0 0 189 0 0 0 25 0 1 0 494566307 13869056 727 33554432000 4194304 4929204 140733810550096 18446744073709551615 4633781 0 0 4096 18946 0 0 0 17 1 0 0 0
/proc/6441/statm: 3386 727 368 180 0 396 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 13544

[startup+2.10056 s]
/proc/loadavg: 3.44 3.87 3.79 5/190 6472
/proc/meminfo: memFree=26003448/32951124 swapFree=67051468/67111528
[pid=6441] ppid=6439 vsize=13544 CPUtime=2.1 cores=1,3
/proc/6441/stat : 6441 (clasp) R 6439 6441 5603 0 -1 4202496 802 0 0 0 210 0 0 0 25 0 1 0 494566307 13869056 742 33554432000 4194304 4929204 140733810550096 18446744073709551615 4316200 0 0 4096 18946 0 0 0 17 1 0 0 0
/proc/6441/statm: 3386 742 368 180 0 396 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 13544

[startup+2.20654 s]
/proc/loadavg: 3.44 3.87 3.79 5/190 6472
/proc/meminfo: memFree=26003448/32951124 swapFree=67051468/67111528
[pid=6441] ppid=6439 vsize=13544 CPUtime=2.2 cores=1,3
/proc/6441/stat : 6441 (clasp) R 6439 6441 5603 0 -1 4202496 802 0 0 0 220 0 0 0 25 0 1 0 494566307 13869056 742 33554432000 4194304 4929204 140733810550096 18446744073709551615 4633851 0 0 4096 18946 0 0 0 17 1 0 0 0
/proc/6441/statm: 3386 742 368 180 0 396 0
Current children cumulated CPU time (s) 2.2
Current children cumulated vsize (KiB) 13544

Child status: 20
Real time (s): 2.26835
CPU time (s): 2.26765
CPU user time (s): 2.26666
CPU system time (s): 0.000999
CPU usage (%): 99.9691
Max. virtual memory (cumulated for all children) (KiB): 13544

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.26666
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 817
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= 1

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node101 at 2011-04-26 16:53:55
IDJOB=3300359
IDBENCH=87444
IDSOLVER=1685
FILE ID=node101/3300359-1303829635
RUNJOBID= node101-1303829635-6377
PBS_JOBID= 13160795
Free space on /tmp= 72084 MiB

SOLVER NAME= clasp 2.0-R4092-crafted
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3900_3900_060.shuffled.cnf
COMMAND LINE= HOME/clasp --sat-p=20,25,120,-1,0 --berk-max=512 --berk-once --otfs=1 --recursive-str --dinit=800,10000 --dsched=20000,1.1 --reverse-arcs=2 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3300359-1303829635/watcher-3300359-1303829635 -o /tmp/evaluation-result-3300359-1303829635/solver-3300359-1303829635 -C 2400 -W 1300 -M 7680  HOME/clasp --sat-p=20,25,120,-1,0 --berk-max=512 --berk-once --otfs=1 --recursive-str --dinit=800,10000 --dsched=20000,1.1 --reverse-arcs=2 HOME/instance-3300359-1303829635.cnf

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

MD5SUM BENCH= 8fb426184fc34ee36ee1bb5e07551b2d
RANDOM SEED=2137234700

node101.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		: 2666.841
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		: 2666.841
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	: 5226.07
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		: 2666.841
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	: 5332.77
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		: 2666.841
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	: 5332.83
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		: 2666.841
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	: 5332.74
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		: 2666.841
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	: 5332.83
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		: 2666.841
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		: 2666.841
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      26015980 kB
Buffers:       1961552 kB
Cached:        4496412 kB
SwapCached:      30452 kB
Active:        2595836 kB
Inactive:      3895852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      26015980 kB
SwapTotal:    67111528 kB
SwapFree:     67051468 kB
Dirty:             984 kB
Writeback:           4 kB
AnonPages:       24636 kB
Mapped:           8984 kB
Slab:           378348 kB
PageTables:       5136 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   191164 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= 72080 MiB
End job on node101 at 2011-04-26 16:53:58