Trace number 3291435

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_M 2011-02-16? 1.65075 1.65412

General information on the benchmark

NameSAT03/industrial/li/li-exam/
li-exam-61.shuffled-as.sat03-366.cnf
MD5SUM3be662940f394fa876137a905247d755
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables28147
Number of clauses108436
Sum of the clauses size373110
Maximum clause length166
Minimum clause length1
Number of clauses of size 114
Number of clauses of size 218786
Number of clauses of size 351588
Number of clauses of size 437440
Number of clauses of size 53
Number of clauses of size over 5605

Solver Data 

1.59/1.65	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
1.59/1.65	c input CNF file=HOME/instance-3291435-1303789254.cnf 
1.59/1.65	c Clause#=108436  var#=28147  ratio=3 
1.59/1.65	c phase 1 
1.59/1.65	c Simplified clause#=114151 
1.59/1.65	c XOR_varElimination deleted var#=84 clauses#=107716 
1.59/1.65	c before shortening average=12.879674, XOR clauses#=6740 
1.59/1.65	c 
1.59/1.65	c 
1.59/1.65	c SEGMENTATION FAULT 
1.59/1.65	c 
1.59/1.65	s UNKNOWN
1.59/1.65	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-3291435-1303789254/watcher-3291435-1303789254 -o /tmp/evaluation-result-3291435-1303789254/solver-3291435-1303789254 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3291435-1303789254.cnf 

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: 3.46 3.86 3.51 5/189 25748
/proc/meminfo: memFree=16330032/32951124 swapFree=67111528/67111528
[pid=25748] ppid=25746 vsize=4836 CPUtime=0 cores=4,6
/proc/25748/stat : 25748 (MPhaseSAT_M) R 25746 25748 24259 0 -1 4202496 325 0 0 0 0 0 0 0 21 0 1 0 490525832 4952064 267 33554432000 134512640 134829744 4294449088 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25748/statm: 1209 267 225 78 0 495 0

[startup+0.0417569 s]
/proc/loadavg: 3.46 3.86 3.51 5/189 25748
/proc/meminfo: memFree=16330032/32951124 swapFree=67111528/67111528
[pid=25748] ppid=25746 vsize=4836 CPUtime=0.03 cores=4,6
/proc/25748/stat : 25748 (MPhaseSAT_M) R 25746 25748 24259 0 -1 4202496 502 0 0 0 3 0 0 0 21 0 1 0 490525832 4952064 444 33554432000 134512640 134829744 4294449088 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25748/statm: 1209 444 225 78 0 495 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4836

[startup+0.100751 s]
/proc/loadavg: 3.46 3.86 3.51 5/189 25748
/proc/meminfo: memFree=16330032/32951124 swapFree=67111528/67111528
[pid=25748] ppid=25746 vsize=5296 CPUtime=0.09 cores=4,6
/proc/25748/stat : 25748 (MPhaseSAT_M) R 25746 25748 24259 0 -1 4202496 893 0 0 0 9 0 0 0 21 0 1 0 490525832 5423104 813 33554432000 134512640 134829744 4294449088 18446744073709551615 134575084 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25748/statm: 1324 813 231 78 0 610 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5296

[startup+0.300697 s]
/proc/loadavg: 3.46 3.86 3.51 5/189 25748
/proc/meminfo: memFree=16330032/32951124 swapFree=67111528/67111528
[pid=25748] ppid=25746 vsize=15268 CPUtime=0.29 cores=4,6
/proc/25748/stat : 25748 (MPhaseSAT_M) R 25746 25748 24259 0 -1 4202496 8134 0 0 0 29 0 0 0 22 0 1 0 490525832 15634432 3286 33554432000 134512640 134829744 4294449088 18446744073709551615 10024444 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25748/statm: 3817 3287 252 78 0 3103 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15268

[startup+0.70064 s]
/proc/loadavg: 3.46 3.86 3.51 5/189 25748
/proc/meminfo: memFree=16330032/32951124 swapFree=67111528/67111528
[pid=25748] ppid=25746 vsize=23056 CPUtime=0.68 cores=4,6
/proc/25748/stat : 25748 (MPhaseSAT_M) R 25746 25748 24259 0 -1 4202496 10274 0 0 0 68 0 0 0 23 0 1 0 490525832 23609344 5235 33554432000 134512640 134829744 4294449088 18446744073709551615 134667578 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25748/statm: 5764 5235 265 78 0 5050 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 23056

[startup+1.50047 s]
/proc/loadavg: 3.46 3.86 3.51 5/190 25749
/proc/meminfo: memFree=16308588/32951124 swapFree=67111528/67111528
[pid=25748] ppid=25746 vsize=9892 CPUtime=1.49 cores=4,6
/proc/25748/stat : 25748 (MPhaseSAT_M) R 25746 25748 24259 0 -1 4202496 18073 0 0 0 148 1 0 0 25 0 1 0 490525832 10129408 1921 33554432000 134512640 134829744 4294449088 18446744073709551615 134582259 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25748/statm: 2473 1921 271 78 0 1759 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9892

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

[startup+1.60046 s]
/proc/loadavg: 3.46 3.86 3.51 5/190 25749
/proc/meminfo: memFree=16308588/32951124 swapFree=67111528/67111528
[pid=25748] ppid=25746 vsize=12836 CPUtime=1.59 cores=4,6
/proc/25748/stat : 25748 (MPhaseSAT_M) R 25746 25748 24259 0 -1 4202496 18653 0 0 0 158 1 0 0 25 0 1 0 490525832 13144064 1943 33554432000 134512640 134829744 4294449088 18446744073709551615 134579984 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/25748/statm: 3209 1944 271 78 0 2495 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 12836

Child status: 0
Real time (s): 1.65412
CPU time (s): 1.65075
CPU user time (s): 1.63275
CPU system time (s): 0.017997
CPU usage (%): 99.7963
Max. virtual memory (cumulated for all children) (KiB): 23056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.63275
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20375
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= 1

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node105 at 2011-04-26 05:40:54
IDJOB=3291435
IDBENCH=84223
IDSOLVER=1522
FILE ID=node105/3291435-1303789254
RUNJOBID= node105-1303789253-25707
PBS_JOBID= 13157226
Free space on /tmp= 72200 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT03/industrial/li/li-exam/li-exam-61.shuffled-as.sat03-366.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3291435-1303789254/watcher-3291435-1303789254 -o /tmp/evaluation-result-3291435-1303789254/solver-3291435-1303789254 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3291435-1303789254.cnf

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

MD5SUM BENCH= 3be662940f394fa876137a905247d755
RANDOM SEED=870322317

node105.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		: 2666.825
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	: 5333.65
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		: 2666.825
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	: 5226.15
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		: 2666.825
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	: 5332.82
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		: 2666.825
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		: 2666.825
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	: 5410.70
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		: 2666.825
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		: 2666.825
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		: 2666.825
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:      16330188 kB
Buffers:       2289932 kB
Cached:       13663940 kB
SwapCached:          0 kB
Active:        8459388 kB
Inactive:      7591936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16330188 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7812 kB
Writeback:          24 kB
AnonPages:       96336 kB
Mapped:          16500 kB
Slab:           505600 kB
PageTables:       5384 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   281784 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= 72200 MiB
End job on node105 at 2011-04-26 05:40:56