Trace number 3265395

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
MPhaseSAT64 2011-03-03? 2.90156 2.90269

General information on the benchmark

NameSAT05/crafted/sabharwal05/ordering/gt-ordering/
sat/gt-030.shuffled-as.sat05-1295.cnf
MD5SUMf0614c8232d9b15ffdf32ce3e2c1390b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.05799
Satisfiable
(Un)Satisfiability was proved
Number of variables870
Number of clauses24824
Sum of the clauses size74817
Maximum clause length29
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2435
Number of clauses of size 324359
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 530

Solver Data 

2.89/2.90	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
2.89/2.90	c input CNF file=HOME/instance-3265395-1303574536.cnf 
2.89/2.90	c Clause#=24824  var#=870  ratio=28 
2.89/2.90	c Simplified clause#=24824 
2.89/2.90	c XOR_varElimination deleted var#=0 clauses#=24824 
2.89/2.90	c inative var#=0 
2.89/2.90	c free var#=870  
2.89/2.90	c solving by ALO selection 
2.89/2.90	c 
2.89/2.90	c 
2.89/2.90	c SEGMENTATION FAULT 
2.89/2.90	c 
2.89/2.90	s UNKNOWN
2.89/2.90	c

Verifier Data 

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: UNKNOWN

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-3265395-1303574536/watcher-3265395-1303574536 -o /tmp/evaluation-result-3265395-1303574536/solver-3265395-1303574536 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3265395-1303574536.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: 3.68 3.92 3.80 4/184 28854
/proc/meminfo: memFree=19898404/32951124 swapFree=67111524/67111528
[pid=28854] ppid=28852 vsize=3652 CPUtime=0 cores=1,3
/proc/28854/stat : 28854 (MPhaseSAT64) R 28852 28854 27965 0 -1 4202496 332 0 0 0 0 0 0 0 22 0 1 0 449869754 3739648 273 33554432000 134512640 134761588 4286848080 18446744073709551615 134531215 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/28854/statm: 913 273 225 61 0 216 0

[startup+0.010594 s]
/proc/loadavg: 3.68 3.92 3.80 4/184 28854
/proc/meminfo: memFree=19898404/32951124 swapFree=67111524/67111528
[pid=28854] ppid=28852 vsize=3652 CPUtime=0 cores=1,3
/proc/28854/stat : 28854 (MPhaseSAT64) R 28852 28854 27965 0 -1 4202496 358 0 0 0 0 0 0 0 22 0 1 0 449869754 3739648 299 33554432000 134512640 134761588 4286848080 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/28854/statm: 913 299 225 61 0 216 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 3652

[startup+0.100578 s]
/proc/loadavg: 3.68 3.92 3.80 4/184 28854
/proc/meminfo: memFree=19898404/32951124 swapFree=67111524/67111528
[pid=28854] ppid=28852 vsize=5628 CPUtime=0.09 cores=1,3
/proc/28854/stat : 28854 (MPhaseSAT64) R 28852 28854 27965 0 -1 4202496 778 0 0 0 9 0 0 0 22 0 1 0 449869754 5763072 644 33554432000 134512640 134761588 4286848080 18446744073709551615 134580576 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/28854/statm: 1407 644 238 61 0 710 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5628

[startup+0.300542 s]
/proc/loadavg: 3.68 3.92 3.80 4/184 28854
/proc/meminfo: memFree=19898404/32951124 swapFree=67111524/67111528
[pid=28854] ppid=28852 vsize=6636 CPUtime=0.29 cores=1,3
/proc/28854/stat : 28854 (MPhaseSAT64) R 28852 28854 27965 0 -1 4202496 1342 0 0 0 29 0 0 0 23 0 1 0 449869754 6795264 1207 33554432000 134512640 134761588 4286848080 18446744073709551615 134644227 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/28854/statm: 1659 1207 259 61 0 962 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6636

[startup+0.700474 s]
/proc/loadavg: 3.68 3.92 3.80 4/184 28854
/proc/meminfo: memFree=19898404/32951124 swapFree=67111524/67111528
[pid=28854] ppid=28852 vsize=6100 CPUtime=0.69 cores=1,3
/proc/28854/stat : 28854 (MPhaseSAT64) R 28852 28854 27965 0 -1 4202496 2259 0 0 0 69 0 0 0 25 0 1 0 449869754 6246400 981 33554432000 134512640 134761588 4286848080 18446744073709551615 134636850 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/28854/statm: 1525 981 275 61 0 828 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6100

[startup+1.50033 s]
/proc/loadavg: 3.68 3.92 3.80 5/190 28865
/proc/meminfo: memFree=19867628/32951124 swapFree=67111524/67111528
[pid=28854] ppid=28852 vsize=9684 CPUtime=1.49 cores=1,3
/proc/28854/stat : 28854 (MPhaseSAT64) R 28852 28854 27965 0 -1 4202496 3570 0 0 0 149 0 0 0 25 0 1 0 449869754 9916416 1895 33554432000 134512640 134761588 4286848080 18446744073709551615 134748428 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/28854/statm: 2421 1895 275 61 0 1724 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9684

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

[startup+2.30019 s]
/proc/loadavg: 3.68 3.92 3.80 5/190 28865
/proc/meminfo: memFree=19849440/32951124 swapFree=67111524/67111528
[pid=28854] ppid=28852 vsize=9688 CPUtime=2.29 cores=1,3
/proc/28854/stat : 28854 (MPhaseSAT64) R 28852 28854 27965 0 -1 4202496 3699 0 0 0 229 0 0 0 25 0 1 0 449869754 9920512 1896 33554432000 134512640 134761588 4286848080 18446744073709551615 134680507 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/28854/statm: 2422 1896 275 61 0 1725 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 9688

[startup+2.70113 s]
/proc/loadavg: 3.68 3.92 3.80 5/190 28865
/proc/meminfo: memFree=19849440/32951124 swapFree=67111524/67111528
[pid=28854] ppid=28852 vsize=9948 CPUtime=2.69 cores=1,3
/proc/28854/stat : 28854 (MPhaseSAT64) R 28852 28854 27965 0 -1 4202496 4353 0 0 0 269 0 0 0 25 0 1 0 449869754 10186752 1961 33554432000 134512640 134761588 4286848080 18446744073709551615 134748408 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/28854/statm: 2487 1961 275 61 0 1790 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 9948

[startup+2.9011 s]
/proc/loadavg: 3.68 3.92 3.80 5/190 28865
/proc/meminfo: memFree=19849440/32951124 swapFree=67111524/67111528
[pid=28854] ppid=28852 vsize=9948 CPUtime=2.89 cores=1,3
/proc/28854/stat : 28854 (MPhaseSAT64) R 28852 28854 27965 0 -1 4202496 4353 0 0 0 289 0 0 0 25 0 1 0 449869754 10186752 1961 33554432000 134512640 134761588 4286848080 18446744073709551615 134747236 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/28854/statm: 2487 1961 275 61 0 1790 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 9948

Child status: 0
Real time (s): 2.90269
CPU time (s): 2.90156
CPU user time (s): 2.89656
CPU system time (s): 0.004999
CPU usage (%): 99.961
Max. virtual memory (cumulated for all children) (KiB): 10716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.89656
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4356
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= 6
involuntary context switches= 2

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node144 at 2011-04-23 18:02:16
IDJOB=3265395
IDBENCH=85618
IDSOLVER=1521
FILE ID=node144/3265395-1303574536
RUNJOBID= node144-1303574536-28824
PBS_JOBID= 13150287
Free space on /tmp= 72184 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT05/crafted/sabharwal05/ordering/gt-ordering/sat/gt-030.shuffled-as.sat05-1295.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3265395-1303574536/watcher-3265395-1303574536 -o /tmp/evaluation-result-3265395-1303574536/solver-3265395-1303574536 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3265395-1303574536.cnf

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

MD5SUM BENCH= f0614c8232d9b15ffdf32ce3e2c1390b
RANDOM SEED=411077202

node144.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		: 2666.850
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		: 2666.850
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	: 5226.16
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		: 2666.850
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		: 2666.850
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		: 2666.850
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		: 2666.850
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	: 5332.82
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		: 2666.850
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		: 2666.850
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      19898560 kB
Buffers:       2155200 kB
Cached:       10295828 kB
SwapCached:          4 kB
Active:        3306296 kB
Inactive:      9212384 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19898560 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:            1588 kB
Writeback:           0 kB
AnonPages:       67048 kB
Mapped:          16428 kB
Slab:           469140 kB
PageTables:       4944 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   231980 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= 72180 MiB
End job on node144 at 2011-04-23 18:02:19