Trace number 3095510

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 3.9394 3.94581

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S539832832-088.SATISFIABLE.cnf
MD5SUM96d6aca5635fba3566aa8534cdc228f2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.734888
Satisfiable
(Un)Satisfiability was proved
Number of variables175
Number of clauses3727
Sum of the clauses size18635
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 53727
Number of clauses of size over 50

Solver Data 

3.89/3.94	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
3.89/3.94	c input CNF file=HOME/instance-3095510-1301753682.cnf 
3.89/3.94	c Clause#=3727  var#=175  ratio=21 
3.89/3.94	c Simplified clause#=3727 
3.89/3.94	c XOR_varElimination deleted var#=0 clauses#=3727 
3.89/3.94	c inative var#=0 
3.89/3.94	c free var#=175  
3.89/3.94	c local search on 
3.89/3.94	c A solution found by local search 
3.89/3.94	c unfixed var#=0 var#=175 
3.89/3.94	c verified 
3.89/3.94	c 
3.89/3.94	s SATISFIABLE
3.89/3.94	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 -126 -127 -128 129 -130 -131 -132 133 -134 135 136 137 -138 -139 140 141 -142 -143 -144 -145 -146 147 -148 -149 -150 -151 152 -153 -154 -155 156 157 158 159 160 161 162 -163 -164 -165 166 167 -168 169 -170 171 172 -173 -174 175 
3.89/3.94	v 0
3.89/3.94	c 
3.89/3.94	c  Running time=3.938402

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-3095510-1301753682/watcher-3095510-1301753682 -o /tmp/evaluation-result-3095510-1301753682/solver-3095510-1301753682 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095510-1301753682.cnf 

running on 2 cores: 0,2

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: 4.00 4.00 3.95 5/189 14707
/proc/meminfo: memFree=22335644/32951124 swapFree=67111528/67111528
[pid=14707] ppid=14705 vsize=524 CPUtime=0 cores=0,2
/proc/14707/stat : 14707 (MPhaseSAT_M) R 14705 14707 13854 0 -1 4194304 73 0 0 0 0 0 0 0 25 0 1 0 286970576 536576 27 33554432000 134512640 134829744 4288031232 18446744073709551615 9785940 0 2147483391 4096 0 0 0 0 17 0 0 0 0
/proc/14707/statm: 350 29 22 78 0 24 0

[startup+0.0619469 s]
/proc/loadavg: 4.00 4.00 3.95 5/189 14707
/proc/meminfo: memFree=22335644/32951124 swapFree=67111528/67111528
[pid=14707] ppid=14705 vsize=3588 CPUtime=0.05 cores=0,2
/proc/14707/stat : 14707 (MPhaseSAT_M) R 14705 14707 13854 0 -1 4202496 420 0 0 0 5 0 0 0 25 0 1 0 286970576 3674112 358 33554432000 134512640 134829744 4288031232 18446744073709551615 134580632 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/14707/statm: 897 358 238 78 0 183 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3588

[startup+0.100944 s]
/proc/loadavg: 4.00 4.00 3.95 5/189 14707
/proc/meminfo: memFree=22335644/32951124 swapFree=67111528/67111528
[pid=14707] ppid=14705 vsize=3412 CPUtime=0.09 cores=0,2
/proc/14707/stat : 14707 (MPhaseSAT_M) R 14705 14707 13854 0 -1 4202496 423 0 0 0 9 0 0 0 25 0 1 0 286970576 3493888 360 33554432000 134512640 134829744 4288031232 18446744073709551615 134559433 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/14707/statm: 853 360 238 78 0 139 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3412

[startup+0.300903 s]
/proc/loadavg: 4.00 4.00 3.95 5/189 14707
/proc/meminfo: memFree=22335644/32951124 swapFree=67111528/67111528
[pid=14707] ppid=14705 vsize=4204 CPUtime=0.29 cores=0,2
/proc/14707/stat : 14707 (MPhaseSAT_M) R 14705 14707 13854 0 -1 4202496 645 0 0 0 29 0 0 0 25 0 1 0 286970576 4304896 582 33554432000 134512640 134829744 4288031232 18446744073709551615 134678548 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/14707/statm: 1051 582 270 78 0 337 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4204

[startup+0.700853 s]
/proc/loadavg: 4.00 4.00 3.95 5/189 14707
/proc/meminfo: memFree=22335644/32951124 swapFree=67111528/67111528
[pid=14707] ppid=14705 vsize=4468 CPUtime=0.69 cores=0,2
/proc/14707/stat : 14707 (MPhaseSAT_M) R 14705 14707 13854 0 -1 4202496 713 0 0 0 69 0 0 0 25 0 1 0 286970576 4575232 650 33554432000 134512640 134829744 4288031232 18446744073709551615 134722768 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/14707/statm: 1117 650 270 78 0 403 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4468

[startup+1.5007 s]
/proc/loadavg: 4.00 4.00 3.95 5/190 14708
/proc/meminfo: memFree=22333412/32951124 swapFree=67111528/67111528
[pid=14707] ppid=14705 vsize=4864 CPUtime=1.49 cores=0,2
/proc/14707/stat : 14707 (MPhaseSAT_M) R 14705 14707 13854 0 -1 4202496 823 0 0 0 149 0 0 0 25 0 1 0 286970576 4980736 760 33554432000 134512640 134829744 4288031232 18446744073709551615 134605805 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/14707/statm: 1216 760 273 78 0 502 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4864

[startup+3.10041 s]
/proc/loadavg: 4.00 4.00 3.95 5/190 14708
/proc/meminfo: memFree=22332420/32951124 swapFree=67111528/67111528
[pid=14707] ppid=14705 vsize=4864 CPUtime=3.09 cores=0,2
/proc/14707/stat : 14707 (MPhaseSAT_M) R 14705 14707 13854 0 -1 4202496 823 0 0 0 309 0 0 0 25 0 1 0 286970576 4980736 760 33554432000 134512640 134829744 4288031232 18446744073709551615 134605882 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/14707/statm: 1216 760 273 78 0 502 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4864

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

[startup+3.50033 s]
/proc/loadavg: 4.00 4.00 3.95 6/190 14708
/proc/meminfo: memFree=22332160/32951124 swapFree=67111528/67111528
[pid=14707] ppid=14705 vsize=4864 CPUtime=3.49 cores=0,2
/proc/14707/stat : 14707 (MPhaseSAT_M) R 14705 14707 13854 0 -1 4202496 823 0 0 0 349 0 0 0 25 0 1 0 286970576 4980736 760 33554432000 134512640 134829744 4288031232 18446744073709551615 134605222 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/14707/statm: 1216 760 273 78 0 502 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 4864

[startup+3.90025 s]
/proc/loadavg: 4.00 4.00 3.95 6/190 14708
/proc/meminfo: memFree=22332160/32951124 swapFree=67111528/67111528
[pid=14707] ppid=14705 vsize=4864 CPUtime=3.89 cores=0,2
/proc/14707/stat : 14707 (MPhaseSAT_M) R 14705 14707 13854 0 -1 4202496 823 0 0 0 389 0 0 0 25 0 1 0 286970576 4980736 760 33554432000 134512640 134829744 4288031232 18446744073709551615 134605484 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/14707/statm: 1216 760 273 78 0 502 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 4864

Child status: 10
Real time (s): 3.94581
CPU time (s): 3.9394
CPU user time (s): 3.9394
CPU system time (s): 0
CPU usage (%): 99.8375
Max. virtual memory (cumulated for all children) (KiB): 4864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.9394
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= 832
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= 12
involuntary context switches= 27

runsolver used 0.009998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node102 at 2011-04-02 16:14:42
IDJOB=3095510
IDBENCH=82792
IDSOLVER=1522
FILE ID=node102/3095510-1301753682
RUNJOBID= node102-1301748573-13872
PBS_JOBID= 12841034
Free space on /tmp= 71972 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S539832832-088.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095510-1301753682/watcher-3095510-1301753682 -o /tmp/evaluation-result-3095510-1301753682/solver-3095510-1301753682 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095510-1301753682.cnf

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

MD5SUM BENCH= 96d6aca5635fba3566aa8534cdc228f2
RANDOM SEED=562110493

node102.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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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:      22335784 kB
Buffers:        334420 kB
Cached:        9728256 kB
SwapCached:          0 kB
Active:        7422324 kB
Inactive:      2935744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22335784 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             400 kB
Writeback:           0 kB
AnonPages:      294916 kB
Mapped:          16928 kB
Slab:           193812 kB
PageTables:       5572 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   504004 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= 71972 MiB
End job on node102 at 2011-04-02 16:14:46