Trace number 3445858

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
MPhaseSAT 2011-02-15UNSAT 0.769882 0.769498

General information on the benchmark

NameSAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/
grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
MD5SUM384c65902b197ca2c64d2ee8a3c64089
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.372942
Satisfiable
(Un)Satisfiability was proved
Number of variables62750
Number of clauses124752
Sum of the clauses size498502
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2250
Number of clauses of size 30
Number of clauses of size 4124500
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.69/0.76	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.69/0.76	c input CNF file=HOME/instance-3445858-1306985492.cnf 
0.69/0.76	c Clause#=124752  var#=62750  ratio=1 
0.69/0.76	c phase 1 
0.69/0.76	c 
0.69/0.76	s UNSATISFIABLE
0.69/0.76	c 
0.69/0.76	c  Running time=0.765885

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: 977)

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-3445858-1306985492/watcher-3445858-1306985492 -o /tmp/evaluation-result-3445858-1306985492/solver-3445858-1306985492 -C 5000 -W 5100 -M 15500 MPhaseSAT HOME/instance-3445858-1306985492.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: 2.06 2.05 2.00 2/477 13744
/proc/meminfo: memFree=21624716/32951124 swapFree=67057928/67111528
[pid=13744] ppid=13742 vsize=4992 CPUtime=0.01 cores=1,3,5,7
/proc/13744/stat : 13744 (MPhaseSAT) R 13742 13744 12297 0 -1 4202496 367 0 0 0 1 0 0 0 19 0 1 0 790964583 5111808 308 33554432000 134512640 134731564 4292716416 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13744/statm: 1248 308 225 54 0 558 0

[startup+0.04653 s]
/proc/loadavg: 2.06 2.05 2.00 2/477 13744
/proc/meminfo: memFree=21624716/32951124 swapFree=67057928/67111528
[pid=13744] ppid=13742 vsize=4992 CPUtime=0.04 cores=1,3,5,7
/proc/13744/stat : 13744 (MPhaseSAT) R 13742 13744 12297 0 -1 4202496 526 0 0 0 4 0 0 0 19 0 1 0 790964583 5111808 467 33554432000 134512640 134731564 4292716416 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13744/statm: 1248 467 225 54 0 558 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4992

[startup+0.100532 s]
/proc/loadavg: 2.06 2.05 2.00 2/477 13744
/proc/meminfo: memFree=21624716/32951124 swapFree=67057928/67111528
[pid=13744] ppid=13742 vsize=5128 CPUtime=0.09 cores=1,3,5,7
/proc/13744/stat : 13744 (MPhaseSAT) R 13742 13744 12297 0 -1 4202496 792 0 0 0 9 0 0 0 19 0 1 0 790964583 5251072 733 33554432000 134512640 134731564 4292716416 18446744073709551615 9459924 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13744/statm: 1282 733 226 54 0 592 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5128

[startup+0.300491 s]
/proc/loadavg: 2.06 2.05 2.00 2/477 13744
/proc/meminfo: memFree=21624716/32951124 swapFree=67057928/67111528
[pid=13744] ppid=13742 vsize=18908 CPUtime=0.29 cores=1,3,5,7
/proc/13744/stat : 13744 (MPhaseSAT) R 13742 13744 12297 0 -1 4202496 12110 0 0 0 28 1 0 0 20 0 1 0 790964583 19361792 4236 33554432000 134512640 134731564 4292716416 18446744073709551615 9586172 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13744/statm: 4727 4237 369 54 0 4037 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 18908

[startup+0.700432 s]
/proc/loadavg: 2.06 2.05 2.00 2/477 13744
/proc/meminfo: memFree=21624716/32951124 swapFree=67057928/67111528
[pid=13744] ppid=13742 vsize=33484 CPUtime=0.69 cores=1,3,5,7
/proc/13744/stat : 13744 (MPhaseSAT) R 13742 13744 12297 0 -1 4202496 16588 0 0 0 67 2 0 0 21 0 1 0 790964583 34287616 7857 33554432000 134512640 134731564 4292716416 18446744073709551615 134685782 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/13744/statm: 8371 7857 381 54 0 7681 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 33484

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

Child status: 20
Real time (s): 0.769498
CPU time (s): 0.769882
CPU user time (s): 0.742887
CPU system time (s): 0.026995
CPU usage (%): 100.05
Max. virtual memory (cumulated for all children) (KiB): 33484

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.742887
system time used= 0.026995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16754
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= 12
involuntary context switches= 1

runsolver used 0.007998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node140 at 2011-06-02 05:31:33
IDJOB=3445858
IDBENCH=85572
IDSOLVER=1941
FILE ID=node140/3445858-1306985492
RUNJOBID= node140-1306983162-13543
PBS_JOBID= 13497672
Free space on /tmp= 73548 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3445858-1306985492/watcher-3445858-1306985492 -o /tmp/evaluation-result-3445858-1306985492/solver-3445858-1306985492 -C 5000 -W 5100 -M 15500  MPhaseSAT HOME/instance-3445858-1306985492.cnf

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

MD5SUM BENCH= 384c65902b197ca2c64d2ee8a3c64089
RANDOM SEED=1572459772

node140.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		: 2666.833
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		: 2666.833
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	: 5226.14
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		: 2666.833
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.75
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		: 2666.833
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		: 2666.833
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		: 2666.833
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21624996 kB
Buffers:        261100 kB
Cached:        3804916 kB
SwapCached:       6932 kB
Active:        7241712 kB
Inactive:      3750652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21624996 kB
SwapTotal:    67111528 kB
SwapFree:     67057928 kB
Dirty:            3160 kB
Writeback:           0 kB
AnonPages:     6924248 kB
Mapped:          39180 kB
Slab:           213836 kB
PageTables:      52316 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 141410124 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= 73548 MiB
End job on node140 at 2011-06-02 05:31:33