Trace number 3257915

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? 6.53401 6.53369

General information on the benchmark

NameCRAFTED/rbsat/random/unforced/
rbsat-v760c43649g5.cnf
MD5SUMfac733a1c5caf879cadf25b989055e5e
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.421935
Satisfiable
(Un)Satisfiability was proved
Number of variables760
Number of clauses43649
Sum of the clauses size87978
Maximum clause length19
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 243609
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 540

Solver Data 

6.50/6.53	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
6.50/6.53	c input CNF file=HOME/instance-3257915-1303468391.cnf 
6.50/6.53	c Clause#=43649  var#=760  ratio=57 
6.50/6.53	c Simplified clause#=41124 
6.50/6.53	c XOR_varElimination deleted var#=0 clauses#=41124 
6.50/6.53	c inative var#=0 
6.50/6.53	c free var#=760  
6.50/6.53	c solving by ALO selection 
6.50/6.53	c 
6.50/6.53	c 
6.50/6.53	c SEGMENTATION FAULT 
6.50/6.53	c 
6.50/6.53	s UNKNOWN
6.50/6.53	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-3257915-1303468391/watcher-3257915-1303468391 -o /tmp/evaluation-result-3257915-1303468391/solver-3257915-1303468391 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3257915-1303468391.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: 4.04 4.01 3.92 4/189 6684
/proc/meminfo: memFree=21219588/32951124 swapFree=67110396/67111528
[pid=6684] ppid=6682 vsize=4264 CPUtime=0 cores=4,6
/proc/6684/stat : 6684 (MPhaseSAT64) R 6682 6684 6230 0 -1 4202496 337 0 0 0 0 0 0 0 25 0 1 0 537069747 4366336 279 33554432000 134512640 134761588 4292243920 18446744073709551615 134531215 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6684/statm: 1066 279 225 61 0 369 0

[startup+0.0584019 s]
/proc/loadavg: 4.04 4.01 3.92 4/189 6684
/proc/meminfo: memFree=21219588/32951124 swapFree=67110396/67111528
[pid=6684] ppid=6682 vsize=4424 CPUtime=0.05 cores=4,6
/proc/6684/stat : 6684 (MPhaseSAT64) R 6682 6684 6230 0 -1 4202496 795 0 0 0 5 0 0 0 25 0 1 0 537069747 4530176 602 33554432000 134512640 134761588 4292243920 18446744073709551615 134515824 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6684/statm: 1106 602 238 61 0 409 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4424

[startup+0.100407 s]
/proc/loadavg: 4.04 4.01 3.92 4/189 6684
/proc/meminfo: memFree=21219588/32951124 swapFree=67110396/67111528
[pid=6684] ppid=6682 vsize=6272 CPUtime=0.09 cores=4,6
/proc/6684/stat : 6684 (MPhaseSAT64) R 6682 6684 6230 0 -1 4202496 1452 0 0 0 9 0 0 0 25 0 1 0 537069747 6422528 1126 33554432000 134512640 134761588 4292243920 18446744073709551615 134657472 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6684/statm: 1568 1126 264 61 0 871 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6272

[startup+0.300348 s]
/proc/loadavg: 4.04 4.01 3.92 4/189 6684
/proc/meminfo: memFree=21219588/32951124 swapFree=67110396/67111528
[pid=6684] ppid=6682 vsize=6676 CPUtime=0.29 cores=4,6
/proc/6684/stat : 6684 (MPhaseSAT64) R 6682 6684 6230 0 -1 4202496 1558 0 0 0 29 0 0 0 25 0 1 0 537069747 6836224 1232 33554432000 134512640 134761588 4292243920 18446744073709551615 134614623 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6684/statm: 1669 1232 269 61 0 972 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6676

[startup+0.70029 s]
/proc/loadavg: 4.04 4.01 3.92 4/189 6684
/proc/meminfo: memFree=21219588/32951124 swapFree=67110396/67111528
[pid=6684] ppid=6682 vsize=7076 CPUtime=0.69 cores=4,6
/proc/6684/stat : 6684 (MPhaseSAT64) R 6682 6684 6230 0 -1 4202496 1658 0 0 0 69 0 0 0 25 0 1 0 537069747 7245824 1332 33554432000 134512640 134761588 4292243920 18446744073709551615 134616738 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6684/statm: 1769 1332 269 61 0 1072 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7076

[startup+1.50116 s]
/proc/loadavg: 4.04 4.01 3.92 5/190 6685
/proc/meminfo: memFree=21215372/32951124 swapFree=67110396/67111528
[pid=6684] ppid=6682 vsize=7876 CPUtime=1.49 cores=4,6
/proc/6684/stat : 6684 (MPhaseSAT64) R 6682 6684 6230 0 -1 4202496 1858 0 0 0 149 0 0 0 25 0 1 0 537069747 8065024 1532 33554432000 134512640 134761588 4292243920 18446744073709551615 134614652 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6684/statm: 1969 1532 269 61 0 1272 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7876

[startup+3.10089 s]
/proc/loadavg: 4.04 4.01 3.92 5/190 6685
/proc/meminfo: memFree=21213760/32951124 swapFree=67110396/67111528
[pid=6684] ppid=6682 vsize=7576 CPUtime=3.09 cores=4,6
/proc/6684/stat : 6684 (MPhaseSAT64) R 6682 6684 6230 0 -1 4202496 2613 0 0 0 309 0 0 0 25 0 1 0 537069747 7757824 1362 33554432000 134512640 134761588 4292243920 18446744073709551615 134635870 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6684/statm: 1894 1362 275 61 0 1197 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7576

[startup+6.30036 s]
/proc/loadavg: 4.03 4.01 3.92 5/190 6685
/proc/meminfo: memFree=21203964/32951124 swapFree=67110396/67111528
[pid=6684] ppid=6682 vsize=8548 CPUtime=6.29 cores=4,6
/proc/6684/stat : 6684 (MPhaseSAT64) R 6682 6684 6230 0 -1 4202496 3209 0 0 0 629 0 0 0 25 0 1 0 537069747 8753152 1573 33554432000 134512640 134761588 4292243920 18446744073709551615 134726489 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6684/statm: 2137 1573 275 61 0 1440 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8548

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

[startup+6.50034 s]
/proc/loadavg: 4.03 4.01 3.92 5/190 6685
/proc/meminfo: memFree=21211280/32951124 swapFree=67110396/67111528
[pid=6684] ppid=6682 vsize=8548 CPUtime=6.5 cores=4,6
/proc/6684/stat : 6684 (MPhaseSAT64) R 6682 6684 6230 0 -1 4202496 3209 0 0 0 650 0 0 0 25 0 1 0 537069747 8753152 1573 33554432000 134512640 134761588 4292243920 18446744073709551615 134635929 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6684/statm: 2137 1573 275 61 0 1440 0
Current children cumulated CPU time (s) 6.5
Current children cumulated vsize (KiB) 8548

Child status: 0
Real time (s): 6.53369
CPU time (s): 6.53401
CPU user time (s): 6.53101
CPU system time (s): 0.002999
CPU usage (%): 100.005
Max. virtual memory (cumulated for all children) (KiB): 10088

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.53101
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3212
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= 5

runsolver used 0.015997 second user time and 0.025996 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-22 12:33:11
IDJOB=3257915
IDBENCH=71286
IDSOLVER=1521
FILE ID=node118/3257915-1303468391
RUNJOBID= node118-1303466902-6249
PBS_JOBID= 13107181
Free space on /tmp= 71720 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT09/CRAFTED/rbsat/random/unforced/rbsat-v760c43649g5.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3257915-1303468391/watcher-3257915-1303468391 -o /tmp/evaluation-result-3257915-1303468391/solver-3257915-1303468391 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3257915-1303468391.cnf

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

MD5SUM BENCH= fac733a1c5caf879cadf25b989055e5e
RANDOM SEED=34630264

node118.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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5332.74
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		: 2666.842
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21219620 kB
Buffers:       1152532 kB
Cached:        9921416 kB
SwapCached:        600 kB
Active:        7548936 kB
Inactive:      3678524 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21219620 kB
SwapTotal:    67111528 kB
SwapFree:     67110396 kB
Dirty:             824 kB
Writeback:           0 kB
AnonPages:      152296 kB
Mapped:          16976 kB
Slab:           438316 kB
PageTables:       5076 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   338756 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= 71720 MiB
End job on node118 at 2011-04-22 12:33:17