Trace number 3156839

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
shortsattime2011 2011-03-02SAT 1.50577 1.50596

General information on the benchmark

Namerandom/large/
unif-k3-r4.2-v2500-c10500-S722024572-014-UNKNOWN.cnf
MD5SUM875a8b1e044c25599d3c66c1e66d27f4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.247961
Satisfiable
(Un)Satisfiability was proved
Number of variables2500
Number of clauses10500
Sum of the clauses size31500
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 310500
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data

1.49/1.50	c 0 clauses are redundant and removed
1.49/1.50	c 0 vars are fixed and 0 clauses are removed after unit propagation
1.49/1.50	c 0 vars are fixed and 0 clauses are removed after lookahead
1.49/1.50	c initial seed is 480520241
1.49/1.50	c try=1 flip j=2702639 walk=2460458 seed 480520258
1.49/1.50	c A solution is found
1.49/1.50	s SATISFIABLE
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1.49/1.50	v 0 
1.49/1.50	c Done (mycputime is 1 seconds)

Verifier Data

OK

Watcher Data

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3156839-1301678156/watcher-3156839-1301678156 -o /tmp/evaluation-result-3156839-1301678156/solver-3156839-1301678156 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3156839-1301678156.cnf 480513454 

running on 2 cores: 4,6

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: 0.58 0.13 0.05 4/189 25066
/proc/meminfo: memFree=27167232/32950928 swapFree=67102716/67111528
[pid=25066] ppid=25064 vsize=1185716 CPUtime=0 cores=4,6
/proc/25066/stat : 25066 (shortsattime201) R 25064 25066 24979 0 -1 4194304 292 0 0 0 0 0 0 0 25 0 1 0 279412720 1214173184 235 33554432000 4194304 4230460 140737358520912 18446744073709551615 239476694784 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25066/statm: 296429 236 100 9 0 293586 0

[startup+0.0906549 s]
/proc/loadavg: 0.58 0.13 0.05 4/189 25066
/proc/meminfo: memFree=27167232/32950928 swapFree=67102716/67111528
[pid=25066] ppid=25064 vsize=1187168 CPUtime=0.08 cores=4,6
/proc/25066/stat : 25066 (shortsattime201) R 25064 25066 24979 0 -1 4202496 902 0 0 0 8 0 0 0 25 0 1 0 279412720 1215660032 843 33554432000 4194304 4230460 140737358520912 18446744073709551615 4221625 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25066/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1187168

[startup+0.100648 s]
/proc/loadavg: 0.58 0.13 0.05 4/189 25066
/proc/meminfo: memFree=27167232/32950928 swapFree=67102716/67111528
[pid=25066] ppid=25064 vsize=1187168 CPUtime=0.09 cores=4,6
/proc/25066/stat : 25066 (shortsattime201) R 25064 25066 24979 0 -1 4202496 902 0 0 0 9 0 0 0 25 0 1 0 279412720 1215660032 843 33554432000 4194304 4230460 140737358520912 18446744073709551615 4221183 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25066/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1187168

[startup+0.300615 s]
/proc/loadavg: 0.58 0.13 0.05 4/189 25066
/proc/meminfo: memFree=27167232/32950928 swapFree=67102716/67111528
[pid=25066] ppid=25064 vsize=1187168 CPUtime=0.29 cores=4,6
/proc/25066/stat : 25066 (shortsattime201) R 25064 25066 24979 0 -1 4202496 902 0 0 0 29 0 0 0 25 0 1 0 279412720 1215660032 843 33554432000 4194304 4230460 140737358520912 18446744073709551615 4221074 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25066/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1187168

[startup+0.700539 s]
/proc/loadavg: 0.58 0.13 0.05 4/189 25066
/proc/meminfo: memFree=27167232/32950928 swapFree=67102716/67111528
[pid=25066] ppid=25064 vsize=1187168 CPUtime=0.69 cores=4,6
/proc/25066/stat : 25066 (shortsattime201) R 25064 25066 24979 0 -1 4202496 902 0 0 0 69 0 0 0 25 0 1 0 279412720 1215660032 843 33554432000 4194304 4230460 140737358520912 18446744073709551615 4219861 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25066/statm: 296792 843 117 9 0 293949 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1187168

[startup+1.50038 s]
/proc/loadavg: 0.58 0.13 0.05 5/190 25067
/proc/meminfo: memFree=27163628/32950928 swapFree=67102716/67111528
[pid=25066] ppid=25064 vsize=1187172 CPUtime=1.49 cores=4,6
/proc/25066/stat : 25066 (shortsattime201) R 25064 25066 24979 0 -1 4202496 904 0 0 0 149 0 0 0 25 0 1 0 279412720 1215664128 845 33554432000 4194304 4230460 140737358520912 18446744073709551615 239476228777 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/25066/statm: 296793 845 117 9 0 293950 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1187172

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

Child status: 10
Real time (s): 1.50596
CPU time (s): 1.50577
CPU user time (s): 1.50177
CPU system time (s): 0.003999
CPU usage (%): 99.9872
Max. virtual memory (cumulated for all children) (KiB): 1187172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.50177
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 907
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= 20

runsolver used 0.001999 second user time and 0.009998 second system time

The end

Launcher Data

Begin job on node148 at 2011-04-01 19:15:57
IDJOB=3156839
IDBENCH=82554
IDSOLVER=1566
FILE ID=node148/3156839-1301678156
RUNJOBID= node148-1301678135-24998
PBS_JOBID= 12840555
Free space on /tmp= 71288 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/large/unif-k3-r4.2-v2500-c10500-S722024572-014-UNKNOWN.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3156839-1301678156/watcher-3156839-1301678156 -o /tmp/evaluation-result-3156839-1301678156/solver-3156839-1301678156 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3156839-1301678156.cnf 480513454

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

MD5SUM BENCH= 875a8b1e044c25599d3c66c1e66d27f4
RANDOM SEED=480513454

node148.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		: 2666.854
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	: 5333.70
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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:      27167272 kB
Buffers:        255440 kB
Cached:        5196188 kB
SwapCached:       4876 kB
Active:        2026812 kB
Inactive:      3533368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      27167272 kB
SwapTotal:    67111528 kB
SwapFree:     67102716 kB
Dirty:           36084 kB
Writeback:           0 kB
AnonPages:      106440 kB
Mapped:          15188 kB
Slab:           160576 kB
PageTables:       5708 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3826640 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= 71280 MiB
End job on node148 at 2011-04-01 19:15:58