Trace number 3445880

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 0.853869 0.853974

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_4300_4300_110.shuffled.cnf
MD5SUM34f8b747bfe8e7b589b8832e56ae8363
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
Satisfiable
(Un)Satisfiability was proved
Number of variables110
Number of clauses1892
Sum of the clauses size9308
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33
Number of clauses of size 4146
Number of clauses of size 51743
Number of clauses of size over 50

Solver Data 

0.79/0.85	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.85	c input CNF file=HOME/instance-3445880-1306986308.cnf 
0.79/0.85	c Clause#=1892  var#=110  ratio=17 
0.79/0.85	c Simplified clause#=1892 
0.79/0.85	c XOR_varElimination deleted var#=0 clauses#=1892 
0.79/0.85	c inative var#=0 
0.79/0.85	c free var#=110  
0.79/0.85	c local search on 
0.79/0.85	c A solution found by local search 
0.79/0.85	c unfixed var#=0 var#=110 
0.79/0.85	c verified 
0.79/0.85	c 
0.79/0.85	s SATISFIABLE
0.79/0.85	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 
0.79/0.85	v 0
0.79/0.85	c 
0.79/0.85	c  Running time=0.851871

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3445880-1306986308/watcher-3445880-1306986308 -o /tmp/evaluation-result-3445880-1306986308/solver-3445880-1306986308 -C 5000 -W 5100 -M 15500 MPhaseSAT HOME/instance-3445880-1306986308.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): 5100 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: 1.51 1.25 1.53 2/514 28567
/proc/meminfo: memFree=19560148/32950940 swapFree=67111364/67111528
[pid=28567] ppid=28565 vsize=3264 CPUtime=0.01 cores=0,2,4,6
/proc/28567/stat : 28567 (MPhaseSAT) R 28565 28567 25394 0 -1 4202496 377 0 0 0 1 0 0 0 25 0 1 0 888861609 3342336 317 33554432000 134512640 134731564 4287548624 18446744073709551615 134580364 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28567/statm: 816 317 238 54 0 126 0

[startup+0.103847 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28567
/proc/meminfo: memFree=19560148/32950940 swapFree=67111364/67111528
[pid=28567] ppid=28565 vsize=3568 CPUtime=0.1 cores=0,2,4,6
/proc/28567/stat : 28567 (MPhaseSAT) R 28565 28567 25394 0 -1 4202496 496 0 0 0 10 0 0 0 25 0 1 0 888861609 3653632 436 33554432000 134512640 134731564 4287548624 18446744073709551615 7954768 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28567/statm: 892 436 268 54 0 202 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3568

[startup+0.200839 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28567
/proc/meminfo: memFree=19560148/32950940 swapFree=67111364/67111528
[pid=28567] ppid=28565 vsize=3700 CPUtime=0.19 cores=0,2,4,6
/proc/28567/stat : 28567 (MPhaseSAT) R 28565 28567 25394 0 -1 4202496 548 0 0 0 19 0 0 0 25 0 1 0 888861609 3788800 488 33554432000 134512640 134731564 4287548624 18446744073709551615 134720889 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28567/statm: 925 488 268 54 0 235 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3700

[startup+0.300809 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28567
/proc/meminfo: memFree=19560148/32950940 swapFree=67111364/67111528
[pid=28567] ppid=28565 vsize=3832 CPUtime=0.29 cores=0,2,4,6
/proc/28567/stat : 28567 (MPhaseSAT) R 28565 28567 25394 0 -1 4202496 576 0 0 0 29 0 0 0 25 0 1 0 888861609 3923968 516 33554432000 134512640 134731564 4287548624 18446744073709551615 7954265 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28567/statm: 958 516 268 54 0 268 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3832

[startup+0.700803 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28567
/proc/meminfo: memFree=19560148/32950940 swapFree=67111364/67111528
[pid=28567] ppid=28565 vsize=4096 CPUtime=0.69 cores=0,2,4,6
/proc/28567/stat : 28567 (MPhaseSAT) R 28565 28567 25394 0 -1 4202496 646 0 0 0 69 0 0 0 25 0 1 0 888861609 4194304 586 33554432000 134512640 134731564 4287548624 18446744073709551615 134721120 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28567/statm: 1024 586 268 54 0 334 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4096

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

[startup+0.800786 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28567
/proc/meminfo: memFree=19560148/32950940 swapFree=67111364/67111528
[pid=28567] ppid=28565 vsize=4228 CPUtime=0.79 cores=0,2,4,6
/proc/28567/stat : 28567 (MPhaseSAT) R 28565 28567 25394 0 -1 4202496 678 0 0 0 79 0 0 0 25 0 1 0 888861609 4329472 618 33554432000 134512640 134731564 4287548624 18446744073709551615 134605577 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28567/statm: 1057 618 271 54 0 367 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4228

Child status: 10
Real time (s): 0.853974
CPU time (s): 0.853869
CPU user time (s): 0.85087
CPU system time (s): 0.002999
CPU usage (%): 99.9877
Max. virtual memory (cumulated for all children) (KiB): 4228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.85087
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= 687
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 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node117 at 2011-06-02 05:45:08
IDJOB=3445880
IDBENCH=87455
IDSOLVER=1941
FILE ID=node117/3445880-1306986308
RUNJOBID= node117-1306986261-28357
PBS_JOBID= 13497692
Free space on /tmp= 73596 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_4300_4300_110.shuffled.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3445880-1306986308/watcher-3445880-1306986308 -o /tmp/evaluation-result-3445880-1306986308/solver-3445880-1306986308 -C 5000 -W 5100 -M 15500  MPhaseSAT HOME/instance-3445880-1306986308.cnf

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

MD5SUM BENCH= 34f8b747bfe8e7b589b8832e56ae8363
RANDOM SEED=607303591

node117.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		: 2666.849
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	: 5333.69
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5267.44
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950940 kB
MemFree:      19560304 kB
Buffers:        328740 kB
Cached:        2889372 kB
SwapCached:          0 kB
Active:       10055612 kB
Inactive:      2955792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950940 kB
LowFree:      19560304 kB
SwapTotal:    67111528 kB
SwapFree:     67111364 kB
Dirty:             348 kB
Writeback:           0 kB
AnonPages:     9793028 kB
Mapped:          42056 kB
Slab:           251768 kB
PageTables:      58012 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586996 kB
Committed_AS: 149501232 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= 73596 MiB
End job on node117 at 2011-06-02 05:45:09