Trace number 3094833

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 2011-03-03SAT 1.04684 1.04739

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S520872997-084.SATISFIABLE.cnf
MD5SUMb9af20624ed5bd46fea8950d0fddc198
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.18797
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 

0.99/1.04	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.99/1.04	c input CNF file=HOME/instance-3094833-1301752496.cnf 
0.99/1.04	c Clause#=3727  var#=175  ratio=21 
0.99/1.04	c Simplified clause#=3727 
0.99/1.04	c XOR_varElimination deleted var#=0 clauses#=3727 
0.99/1.04	c inative var#=0 
0.99/1.04	c free var#=175  
0.99/1.04	c local search on 
0.99/1.04	c A solution found by local search 
0.99/1.04	c unfixed var#=0 var#=175 
0.99/1.04	c verified 
0.99/1.04	c 
0.99/1.04	s SATISFIABLE
0.99/1.04	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 
0.99/1.04	v 0
0.99/1.04	c 
0.99/1.04	c  Running time=1.045841

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-3094833-1301752496/watcher-3094833-1301752496 -o /tmp/evaluation-result-3094833-1301752496/solver-3094833-1301752496 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3094833-1301752496.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: 3.93 3.98 3.91 4/189 18614
/proc/meminfo: memFree=21095020/32951124 swapFree=67111528/67111528
[pid=18614] ppid=18612 vsize=3068 CPUtime=0 cores=0,2
/proc/18614/stat : 18614 (MPhaseSAT64) R 18612 18614 17913 0 -1 4202496 334 0 0 0 0 0 0 0 25 0 1 0 286847351 3141632 274 33554432000 134512640 134761588 4291374656 18446744073709551615 7724451 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18614/statm: 767 274 225 61 0 70 0

[startup+0.101101 s]
/proc/loadavg: 3.93 3.98 3.91 4/189 18614
/proc/meminfo: memFree=21095020/32951124 swapFree=67111528/67111528
[pid=18614] ppid=18612 vsize=3880 CPUtime=0.09 cores=0,2
/proc/18614/stat : 18614 (MPhaseSAT64) R 18612 18614 17913 0 -1 4202496 583 0 0 0 9 0 0 0 25 0 1 0 286847351 3973120 520 33554432000 134512640 134761588 4291374656 18446744073709551615 134618400 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18614/statm: 970 520 258 61 0 273 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3880

[startup+0.201086 s]
/proc/loadavg: 3.93 3.98 3.91 4/189 18614
/proc/meminfo: memFree=21095020/32951124 swapFree=67111528/67111528
[pid=18614] ppid=18612 vsize=4140 CPUtime=0.19 cores=0,2
/proc/18614/stat : 18614 (MPhaseSAT64) R 18612 18614 17913 0 -1 4202496 728 0 0 0 19 0 0 0 25 0 1 0 286847351 4239360 601 33554432000 134512640 134761588 4291374656 18446744073709551615 134636411 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18614/statm: 1035 601 274 61 0 338 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 4140

[startup+0.301073 s]
/proc/loadavg: 3.93 3.98 3.91 4/189 18614
/proc/meminfo: memFree=21095020/32951124 swapFree=67111528/67111528
[pid=18614] ppid=18612 vsize=4396 CPUtime=0.29 cores=0,2
/proc/18614/stat : 18614 (MPhaseSAT64) R 18612 18614 17913 0 -1 4202496 792 0 0 0 29 0 0 0 25 0 1 0 286847351 4501504 665 33554432000 134512640 134761588 4291374656 18446744073709551615 134747536 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18614/statm: 1099 665 274 61 0 402 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4396

[startup+0.700993 s]
/proc/loadavg: 3.93 3.98 3.91 4/189 18614
/proc/meminfo: memFree=21095020/32951124 swapFree=67111528/67111528
[pid=18614] ppid=18612 vsize=5652 CPUtime=0.69 cores=0,2
/proc/18614/stat : 18614 (MPhaseSAT64) R 18612 18614 17913 0 -1 4202496 1074 0 0 0 69 0 0 0 25 0 1 0 286847351 5787648 947 33554432000 134512640 134761588 4291374656 18446744073709551615 134747356 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18614/statm: 1413 947 274 61 0 716 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5652

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

[startup+0.800974 s]
/proc/loadavg: 3.93 3.98 3.91 4/189 18614
/proc/meminfo: memFree=21095020/32951124 swapFree=67111528/67111528
[pid=18614] ppid=18612 vsize=5652 CPUtime=0.79 cores=0,2
/proc/18614/stat : 18614 (MPhaseSAT64) R 18612 18614 17913 0 -1 4202496 1077 0 0 0 79 0 0 0 25 0 1 0 286847351 5787648 950 33554432000 134512640 134761588 4291374656 18446744073709551615 134603260 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18614/statm: 1413 950 277 61 0 716 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5652

[startup+1.00094 s]
/proc/loadavg: 3.93 3.98 3.91 4/189 18614
/proc/meminfo: memFree=21095020/32951124 swapFree=67111528/67111528
[pid=18614] ppid=18612 vsize=5652 CPUtime=0.99 cores=0,2
/proc/18614/stat : 18614 (MPhaseSAT64) R 18612 18614 17913 0 -1 4202496 1077 0 0 0 99 0 0 0 25 0 1 0 286847351 5787648 950 33554432000 134512640 134761588 4291374656 18446744073709551615 134605368 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18614/statm: 1413 950 277 61 0 716 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 5652

Child status: 10
Real time (s): 1.04739
CPU time (s): 1.04684
CPU user time (s): 1.04584
CPU system time (s): 0.000999
CPU usage (%): 99.9479
Max. virtual memory (cumulated for all children) (KiB): 5652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.04584
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1086
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 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node139 at 2011-04-02 15:54:56
IDJOB=3094833
IDBENCH=82715
IDSOLVER=1521
FILE ID=node139/3094833-1301752496
RUNJOBID= node139-1301748579-17931
PBS_JOBID= 12840999
Free space on /tmp= 71872 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S520872997-084.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094833-1301752496/watcher-3094833-1301752496 -o /tmp/evaluation-result-3094833-1301752496/solver-3094833-1301752496 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3094833-1301752496.cnf

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

MD5SUM BENCH= b9af20624ed5bd46fea8950d0fddc198
RANDOM SEED=1976143684

node139.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		: 2666.852
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	: 5333.70
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5321.49
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		: 2666.852
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		: 2666.852
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		: 2666.852
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:      21095300 kB
Buffers:        358284 kB
Cached:       11147960 kB
SwapCached:          0 kB
Active:        7376744 kB
Inactive:      4213252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21095300 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1484 kB
Writeback:           0 kB
AnonPages:       83472 kB
Mapped:          17012 kB
Slab:           201404 kB
PageTables:       5332 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   269780 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= 71872 MiB
End job on node139 at 2011-04-02 15:54:57