Trace number 3094411

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 2011-02-15SAT 1.18982 1.19065

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v125-c2662-S675870149-098.SATISFIABLE.cnf
MD5SUMddac1e46d651615f8587e799d64e665b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.042993
Satisfiable
(Un)Satisfiability was proved
Number of variables125
Number of clauses2662
Sum of the clauses size13310
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 52662
Number of clauses of size over 50

Solver Data 

1.10/1.19	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.10/1.19	c input CNF file=HOME/instance-3094411-1301754893.cnf 
1.10/1.19	c Clause#=2662  var#=125  ratio=21 
1.10/1.19	c Simplified clause#=2662 
1.10/1.19	c XOR_varElimination deleted var#=0 clauses#=2662 
1.10/1.19	c inative var#=0 
1.10/1.19	c free var#=125  
1.10/1.19	c local search on 
1.10/1.19	c A solution found by local search 
1.10/1.19	c unfixed var#=0 var#=125 
1.10/1.19	c verified 
1.10/1.19	c 
1.10/1.19	s SATISFIABLE
1.10/1.19	v 1 2 -3 -4 5 6 -7 -8 9 -10 11 -12 -13 14 -15 16 17 -18 19 -20 -21 -22 23 -24 25 26 -27 28 -29 -30 -31 32 -33 -34 35 36 37 38 -39 -40 -41 -42 -43 -44 45 -46 -47 -48 49 -50 -51 -52 -53 -54 -55 -56 -57 -58 59 60 -61 62 -63 -64 -65 66 67 -68 -69 -70 -71 72 73 -74 75 76 -77 -78 79 -80 81 -82 -83 84 -85 86 -87 88 -89 90 -91 -92 -93 94 95 -96 -97 98 -99 -100 -101 -102 -103 -104 -105 106 107 -108 109 110 -111 112 113 114 115 116 117 -118 119 120 121 -122 123 -124 125 
1.10/1.19	v 0
1.10/1.19	c 
1.10/1.19	c  Running time=1.188820

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-3094411-1301754893/watcher-3094411-1301754893 -o /tmp/evaluation-result-3094411-1301754893/solver-3094411-1301754893 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094411-1301754893.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 4.00 3.94 4/189 23366
/proc/meminfo: memFree=23756440/32951124 swapFree=67111528/67111528
[pid=23366] ppid=23364 vsize=3164 CPUtime=0 cores=4,6
/proc/23366/stat : 23366 (MPhaseSAT) R 23364 23366 22502 0 -1 4202496 388 0 0 0 0 0 0 0 25 0 1 0 287086987 3239936 325 33554432000 134512640 134731564 4289598512 18446744073709551615 134578770 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/23366/statm: 791 325 237 54 0 101 0

[startup+0.070655 s]
/proc/loadavg: 4.04 4.00 3.94 4/189 23366
/proc/meminfo: memFree=23756440/32951124 swapFree=67111528/67111528
[pid=23366] ppid=23364 vsize=3376 CPUtime=0.06 cores=4,6
/proc/23366/stat : 23366 (MPhaseSAT) R 23364 23366 22502 0 -1 4202496 462 0 0 0 6 0 0 0 25 0 1 0 287086987 3457024 399 33554432000 134512640 134731564 4289598512 18446744073709551615 3935952 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/23366/statm: 844 399 262 54 0 154 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3376

[startup+0.100635 s]
/proc/loadavg: 4.04 4.00 3.94 4/189 23366
/proc/meminfo: memFree=23756440/32951124 swapFree=67111528/67111528
[pid=23366] ppid=23364 vsize=3508 CPUtime=0.09 cores=4,6
/proc/23366/stat : 23366 (MPhaseSAT) R 23364 23366 22502 0 -1 4202496 496 0 0 0 9 0 0 0 25 0 1 0 287086987 3592192 433 33554432000 134512640 134731564 4289598512 18446744073709551615 134634347 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/23366/statm: 877 433 268 54 0 187 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3508

[startup+0.300606 s]
/proc/loadavg: 4.04 4.00 3.94 4/189 23366
/proc/meminfo: memFree=23756440/32951124 swapFree=67111528/67111528
[pid=23366] ppid=23364 vsize=3904 CPUtime=0.29 cores=4,6
/proc/23366/stat : 23366 (MPhaseSAT) R 23364 23366 22502 0 -1 4202496 587 0 0 0 29 0 0 0 25 0 1 0 287086987 3997696 524 33554432000 134512640 134731564 4289598512 18446744073709551615 134655444 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/23366/statm: 976 524 268 54 0 286 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3904

[startup+0.70053 s]
/proc/loadavg: 4.04 4.00 3.94 4/189 23366
/proc/meminfo: memFree=23756440/32951124 swapFree=67111528/67111528
[pid=23366] ppid=23364 vsize=4300 CPUtime=0.69 cores=4,6
/proc/23366/stat : 23366 (MPhaseSAT) R 23364 23366 22502 0 -1 4202496 674 0 0 0 69 0 0 0 25 0 1 0 287086987 4403200 611 33554432000 134512640 134731564 4289598512 18446744073709551615 134659359 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/23366/statm: 1075 611 268 54 0 385 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4300

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

[startup+1.10644 s]
/proc/loadavg: 4.04 4.00 3.94 6/190 23367
/proc/meminfo: memFree=23754952/32951124 swapFree=67111528/67111528
[pid=23366] ppid=23364 vsize=4432 CPUtime=1.1 cores=4,6
/proc/23366/stat : 23366 (MPhaseSAT) R 23364 23366 22502 0 -1 4202496 724 0 0 0 110 0 0 0 25 0 1 0 287086987 4538368 661 33554432000 134512640 134731564 4289598512 18446744073709551615 134605024 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/23366/statm: 1108 661 271 54 0 418 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4432

Child status: 10
Real time (s): 1.19065
CPU time (s): 1.18982
CPU user time (s): 1.18982
CPU system time (s): 0
CPU usage (%): 99.9299
Max. virtual memory (cumulated for all children) (KiB): 4432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.18982
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 733
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 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node137 at 2011-04-02 16:34:53
IDJOB=3094411
IDBENCH=82893
IDSOLVER=1520
FILE ID=node137/3094411-1301754893
RUNJOBID= node137-1301749910-22521
PBS_JOBID= 12841037
Free space on /tmp= 72408 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v125-c2662-S675870149-098.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094411-1301754893/watcher-3094411-1301754893 -o /tmp/evaluation-result-3094411-1301754893/solver-3094411-1301754893 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094411-1301754893.cnf

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

MD5SUM BENCH= ddac1e46d651615f8587e799d64e665b
RANDOM SEED=727183516

node137.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		: 2666.844
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		: 2666.844
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		: 2666.844
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		: 2666.844
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	: 5332.74
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		: 2666.844
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		: 2666.844
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		: 2666.844
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	: 5332.83
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		: 2666.844
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:     32951124 kB
MemFree:      23756472 kB
Buffers:        321232 kB
Cached:        8555000 kB
SwapCached:          0 kB
Active:        5131552 kB
Inactive:      3820612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23756472 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             416 kB
Writeback:           0 kB
AnonPages:       76028 kB
Mapped:          16704 kB
Slab:           179128 kB
PageTables:       5204 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   258496 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= 72408 MiB
End job on node137 at 2011-04-02 16:34:54