Trace number 3273552

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 2.54461 2.54474

General information on the benchmark

Namecrafted/spence/sgen/
sgen3-n200-s39840374-sat.cnf
MD5SUM085a3847e14185843eddf941accab006
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.756884
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of clauses480
Sum of the clauses size1200
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2400
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 580
Number of clauses of size over 50

Solver Data 

2.50/2.54	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
2.50/2.54	c input CNF file=HOME/instance-3273552-1303606038.cnf 
2.50/2.54	c Clause#=480  var#=200  ratio=2 
2.50/2.54	c Simplified clause#=480 
2.50/2.54	c XOR_varElimination deleted var#=0 clauses#=480 
2.50/2.54	c inative var#=0 
2.50/2.54	c free var#=200  
2.50/2.54	c local search on 
2.50/2.54	c A solution found by local search 
2.50/2.54	c unfixed var#=0 var#=200 
2.50/2.54	c verified 
2.50/2.54	c 
2.50/2.54	s SATISFIABLE
2.50/2.54	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 -174 175 176 -177 178 179 -180 -181 182 183 -184 185 186 187 -188 -189 190 -191 -192 193 194 -195 196 -197 198 199 200 
2.50/2.54	v 0
2.50/2.54	c 
2.50/2.54	c  Running time=2.542614

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-3273552-1303606038/watcher-3273552-1303606038 -o /tmp/evaluation-result-3273552-1303606038/solver-3273552-1303606038 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3273552-1303606038.cnf 

running on 2 cores: 5,7

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: 1.08 2.19 3.13 3/184 8984
/proc/meminfo: memFree=20486144/32951124 swapFree=67110396/67111528
[pid=8984] ppid=8982 vsize=3036 CPUtime=0 cores=5,7
/proc/8984/stat : 8984 (MPhaseSAT) R 8982 8984 8058 0 -1 4202496 386 0 0 0 0 0 0 0 22 0 1 0 550834454 3108864 326 33554432000 134512640 134731564 4289570720 18446744073709551615 134659256 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/8984/statm: 759 326 268 54 0 69 0

[startup+0.0312809 s]
/proc/loadavg: 1.08 2.19 3.13 3/184 8984
/proc/meminfo: memFree=20486144/32951124 swapFree=67110396/67111528
[pid=8984] ppid=8982 vsize=3300 CPUtime=0.03 cores=5,7
/proc/8984/stat : 8984 (MPhaseSAT) R 8982 8984 8058 0 -1 4202496 434 0 0 0 3 0 0 0 22 0 1 0 550834454 3379200 374 33554432000 134512640 134731564 4289570720 18446744073709551615 134614655 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/8984/statm: 825 374 268 54 0 135 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3300

[startup+0.100271 s]
/proc/loadavg: 1.08 2.19 3.13 3/184 8984
/proc/meminfo: memFree=20486144/32951124 swapFree=67110396/67111528
[pid=8984] ppid=8982 vsize=3432 CPUtime=0.09 cores=5,7
/proc/8984/stat : 8984 (MPhaseSAT) R 8982 8984 8058 0 -1 4202496 475 0 0 0 9 0 0 0 22 0 1 0 550834454 3514368 415 33554432000 134512640 134731564 4289570720 18446744073709551615 134624777 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/8984/statm: 858 415 268 54 0 168 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3432

[startup+0.300237 s]
/proc/loadavg: 1.08 2.19 3.13 3/184 8984
/proc/meminfo: memFree=20486144/32951124 swapFree=67110396/67111528
[pid=8984] ppid=8982 vsize=3828 CPUtime=0.29 cores=5,7
/proc/8984/stat : 8984 (MPhaseSAT) R 8982 8984 8058 0 -1 4202496 567 0 0 0 29 0 0 0 23 0 1 0 550834454 3919872 507 33554432000 134512640 134731564 4289570720 18446744073709551615 134659679 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/8984/statm: 957 507 268 54 0 267 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3828

[startup+0.700172 s]
/proc/loadavg: 1.08 2.19 3.13 3/184 8984
/proc/meminfo: memFree=20486144/32951124 swapFree=67110396/67111528
[pid=8984] ppid=8982 vsize=4092 CPUtime=0.69 cores=5,7
/proc/8984/stat : 8984 (MPhaseSAT) R 8982 8984 8058 0 -1 4202496 646 0 0 0 69 0 0 0 25 0 1 0 550834454 4190208 586 33554432000 134512640 134731564 4289570720 18446744073709551615 134656015 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/8984/statm: 1023 586 268 54 0 333 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4092

[startup+1.50104 s]
/proc/loadavg: 1.08 2.19 3.13 4/185 8985
/proc/meminfo: memFree=20484728/32951124 swapFree=67110396/67111528
[pid=8984] ppid=8982 vsize=4224 CPUtime=1.5 cores=5,7
/proc/8984/stat : 8984 (MPhaseSAT) R 8982 8984 8058 0 -1 4202496 666 0 0 0 150 0 0 0 25 0 1 0 550834454 4325376 606 33554432000 134512640 134731564 4289570720 18446744073709551615 134605277 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/8984/statm: 1056 606 271 54 0 366 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 4224

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

[startup+2.3009 s]
/proc/loadavg: 1.08 2.19 3.13 5/190 8995
/proc/meminfo: memFree=20482704/32951124 swapFree=67110396/67111528
[pid=8984] ppid=8982 vsize=4224 CPUtime=2.3 cores=5,7
/proc/8984/stat : 8984 (MPhaseSAT) R 8982 8984 8058 0 -1 4202496 666 0 0 0 230 0 0 0 25 0 1 0 550834454 4325376 606 33554432000 134512640 134731564 4289570720 18446744073709551615 134607842 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/8984/statm: 1056 606 271 54 0 366 0
Current children cumulated CPU time (s) 2.3
Current children cumulated vsize (KiB) 4224

[startup+2.50087 s]
/proc/loadavg: 1.08 2.19 3.13 5/190 8995
/proc/meminfo: memFree=20482704/32951124 swapFree=67110396/67111528
[pid=8984] ppid=8982 vsize=4224 CPUtime=2.5 cores=5,7
/proc/8984/stat : 8984 (MPhaseSAT) R 8982 8984 8058 0 -1 4202496 666 0 0 0 250 0 0 0 25 0 1 0 550834454 4325376 606 33554432000 134512640 134731564 4289570720 18446744073709551615 134606385 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/8984/statm: 1056 606 271 54 0 366 0
Current children cumulated CPU time (s) 2.5
Current children cumulated vsize (KiB) 4224

Child status: 10
Real time (s): 2.54474
CPU time (s): 2.54461
CPU user time (s): 2.54361
CPU system time (s): 0.000999
CPU usage (%): 99.995
Max. virtual memory (cumulated for all children) (KiB): 4224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.54361
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= 675
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= 7
involuntary context switches= 4

runsolver used 0.007998 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-24 02:47:18
IDJOB=3273552
IDBENCH=83142
IDSOLVER=1520
FILE ID=node118/3273552-1303606038
RUNJOBID= node118-1303606034-8901
PBS_JOBID= 13150579
Free space on /tmp= 71744 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/crafted/spence/sgen/sgen3-n200-s39840374-sat.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3273552-1303606038/watcher-3273552-1303606038 -o /tmp/evaluation-result-3273552-1303606038/solver-3273552-1303606038 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3273552-1303606038.cnf

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

MD5SUM BENCH= 085a3847e14185843eddf941accab006
RANDOM SEED=2144813820

node118.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		: 2666.842
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		: 2666.842
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20486424 kB
Buffers:       1859592 kB
Cached:       10014244 kB
SwapCached:        600 kB
Active:        8484612 kB
Inactive:      3458096 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20486424 kB
SwapTotal:    67111528 kB
SwapFree:     67110396 kB
Dirty:             912 kB
Writeback:           0 kB
AnonPages:       68232 kB
Mapped:          16672 kB
Slab:           459416 kB
PageTables:       5496 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   233680 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= 71744 MiB
End job on node118 at 2011-04-24 02:47:21