Trace number 3221684

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 2011-02-16SAT 0.928858 0.929679

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v125-c2662-S464722883-083.SATISFIABLE.cnf
MD5SUMf1e33ebe027aeef1e1287d547aeffeed
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021995
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 

0.89/0.92	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.89/0.92	c input CNF file=HOME/instance-3221684-1303295703.cnf 
0.89/0.92	c Clause#=2662  var#=125  ratio=21 
0.89/0.92	c Simplified clause#=2662 
0.89/0.92	c XOR_varElimination deleted var#=0 clauses#=2662 
0.89/0.92	c inative var#=0 
0.89/0.92	c free var#=125  
0.89/0.92	c local search on 
0.89/0.92	c A solution found by local search 
0.89/0.92	c unfixed var#=0 var#=125 
0.89/0.92	c verified 
0.89/0.92	c 
0.89/0.92	s SATISFIABLE
0.89/0.92	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 
0.89/0.92	v 0
0.89/0.92	c 
0.89/0.92	c  Running time=0.927859

Verifier Data 

OK

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-3221684-1303295703/watcher-3221684-1303295703 -o /tmp/evaluation-result-3221684-1303295703/solver-3221684-1303295703 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221684-1303295703.cnf 

running on 4 cores: 0,2,4,6

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): 5000 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: 1.99 1.99 1.99 2/177 20060
/proc/meminfo: memFree=15943420/32951124 swapFree=67111528/67111528
[pid=20060] ppid=20058 vsize=3316 CPUtime=0 cores=0,2,4,6
/proc/20060/stat : 20060 (MPhaseSAT_M) R 20058 20060 19456 0 -1 4202496 386 0 0 0 0 0 0 0 25 0 1 0 421985873 3395584 327 33554432000 134512640 134829744 4288223600 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/20060/statm: 829 327 236 78 0 115 0

[startup+0.0526669 s]
/proc/loadavg: 1.99 1.99 1.99 2/177 20060
/proc/meminfo: memFree=15943420/32951124 swapFree=67111528/67111528
[pid=20060] ppid=20058 vsize=3476 CPUtime=0.05 cores=0,2,4,6
/proc/20060/stat : 20060 (MPhaseSAT_M) R 20058 20060 19456 0 -1 4202496 393 0 0 0 5 0 0 0 25 0 1 0 421985873 3559424 333 33554432000 134512640 134829744 4288223600 18446744073709551615 134580568 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/20060/statm: 869 333 238 78 0 155 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3476

[startup+0.100686 s]
/proc/loadavg: 1.99 1.99 1.99 2/177 20060
/proc/meminfo: memFree=15943420/32951124 swapFree=67111528/67111528
[pid=20060] ppid=20058 vsize=3608 CPUtime=0.09 cores=0,2,4,6
/proc/20060/stat : 20060 (MPhaseSAT_M) R 20058 20060 19456 0 -1 4202496 497 0 0 0 9 0 0 0 25 0 1 0 421985873 3694592 437 33554432000 134512640 134829744 4288223600 18446744073709551615 134669311 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/20060/statm: 902 437 270 78 0 188 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3608

[startup+0.300652 s]
/proc/loadavg: 1.99 1.99 1.99 2/177 20060
/proc/meminfo: memFree=15943420/32951124 swapFree=67111528/67111528
[pid=20060] ppid=20058 vsize=4004 CPUtime=0.29 cores=0,2,4,6
/proc/20060/stat : 20060 (MPhaseSAT_M) R 20058 20060 19456 0 -1 4202496 590 0 0 0 29 0 0 0 25 0 1 0 421985873 4100096 530 33554432000 134512640 134829744 4288223600 18446744073709551615 134661446 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/20060/statm: 1001 530 270 78 0 287 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4004

[startup+0.700575 s]
/proc/loadavg: 1.99 1.99 1.99 2/177 20060
/proc/meminfo: memFree=15943420/32951124 swapFree=67111528/67111528
[pid=20060] ppid=20058 vsize=4400 CPUtime=0.69 cores=0,2,4,6
/proc/20060/stat : 20060 (MPhaseSAT_M) R 20058 20060 19456 0 -1 4202496 679 0 0 0 69 0 0 0 25 0 1 0 421985873 4505600 619 33554432000 134512640 134829744 4288223600 18446744073709551615 134661368 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/20060/statm: 1100 619 270 78 0 386 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4400

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

[startup+0.900537 s]
/proc/loadavg: 1.99 1.99 1.99 2/177 20060
/proc/meminfo: memFree=15943420/32951124 swapFree=67111528/67111528
[pid=20060] ppid=20058 vsize=4532 CPUtime=0.89 cores=0,2,4,6
/proc/20060/stat : 20060 (MPhaseSAT_M) R 20058 20060 19456 0 -1 4202496 726 0 0 0 89 0 0 0 25 0 1 0 421985873 4640768 666 33554432000 134512640 134829744 4288223600 18446744073709551615 134605618 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/20060/statm: 1133 666 273 78 0 419 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4532

Child status: 10
Real time (s): 0.929679
CPU time (s): 0.928858
CPU user time (s): 0.928858
CPU system time (s): 0
CPU usage (%): 99.9117
Max. virtual memory (cumulated for all children) (KiB): 4532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.928858
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= 735
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= 3

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node141 at 2011-04-20 12:35:03
IDJOB=3221684
IDBENCH=82964
IDSOLVER=1637
FILE ID=node141/3221684-1303295703
RUNJOBID= node141-1303290256-19474
PBS_JOBID= 13049614
Free space on /tmp= 71468 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v125-c2662-S464722883-083.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221684-1303295703/watcher-3221684-1303295703 -o /tmp/evaluation-result-3221684-1303295703/solver-3221684-1303295703 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221684-1303295703.cnf

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

MD5SUM BENCH= f1e33ebe027aeef1e1287d547aeffeed
RANDOM SEED=1913275142

node141.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		: 2666.806
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	: 5333.61
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		: 2666.806
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	: 5362.96
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		: 2666.806
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		: 2666.806
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		: 2666.806
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	: 5332.84
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		: 2666.806
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		: 2666.806
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		: 2666.806
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:      15943436 kB
Buffers:        788960 kB
Cached:       15299248 kB
SwapCached:          0 kB
Active:        9070548 kB
Inactive:      7584084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15943436 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             476 kB
Writeback:           0 kB
AnonPages:      566372 kB
Mapped:          16120 kB
Slab:           289612 kB
PageTables:       5336 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   728252 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= 71464 MiB
End job on node141 at 2011-04-20 12:35:04