Trace number 3273505

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 2.66359 2.67073

General information on the benchmark

Namecrafted/spence/sgen/
sgen3-n180-s34713902-sat.cnf
MD5SUM19292459de25c4f5e9e6f187c00d549d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.431934
Satisfiable
(Un)Satisfiability was proved
Number of variables180
Number of clauses432
Sum of the clauses size1080
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2360
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 572
Number of clauses of size over 50

Solver Data 

2.59/2.67	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
2.59/2.67	c input CNF file=HOME/instance-3273505-1303606034.cnf 
2.59/2.67	c Clause#=432  var#=180  ratio=2 
2.59/2.67	c Simplified clause#=432 
2.59/2.67	c XOR_varElimination deleted var#=0 clauses#=432 
2.59/2.67	c inative var#=0 
2.59/2.67	c free var#=180  
2.59/2.67	c local search on 
2.59/2.67	c A solution found by local search 
2.59/2.67	c unfixed var#=0 var#=180 
2.59/2.67	c verified 
2.59/2.67	c 
2.59/2.67	s SATISFIABLE
2.59/2.67	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 
2.59/2.67	v 0
2.59/2.67	c 
2.59/2.67	c  Running time=2.662595

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-3273505-1303606034/watcher-3273505-1303606034 -o /tmp/evaluation-result-3273505-1303606034/solver-3273505-1303606034 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3273505-1303606034.cnf 

running on 2 cores: 4,6

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: 0.91 2.18 3.13 5/189 8940
/proc/meminfo: memFree=20486980/32951124 swapFree=67110396/67111528
[pid=8940] ppid=8938 vsize=1528 CPUtime=0 cores=4,6
/proc/8940/stat : 8940 (MPhaseSAT) S 8938 8940 8058 0 -1 4194304 88 0 0 0 0 0 0 0 21 0 1 0 550834100 1564672 43 33554432000 134512640 134731564 4289224320 18446744073709551615 6632020 0 2147483391 4096 0 18446744071699199166 0 0 17 4 0 0 0
/proc/8940/statm: 382 43 33 54 0 30 0

[startup+0.090209 s]
/proc/loadavg: 0.91 2.18 3.13 5/189 8940
/proc/meminfo: memFree=20486980/32951124 swapFree=67110396/67111528
[pid=8940] ppid=8938 vsize=3428 CPUtime=0.08 cores=4,6
/proc/8940/stat : 8940 (MPhaseSAT) R 8938 8940 8058 0 -1 4202496 468 0 0 0 8 0 0 0 21 0 1 0 550834100 3510272 409 33554432000 134512640 134731564 4289224320 18446744073709551615 7102632 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8940/statm: 857 409 268 54 0 167 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3428

[startup+0.100201 s]
/proc/loadavg: 0.91 2.18 3.13 5/189 8940
/proc/meminfo: memFree=20486980/32951124 swapFree=67110396/67111528
[pid=8940] ppid=8938 vsize=3428 CPUtime=0.09 cores=4,6
/proc/8940/stat : 8940 (MPhaseSAT) R 8938 8940 8058 0 -1 4202496 471 0 0 0 9 0 0 0 21 0 1 0 550834100 3510272 412 33554432000 134512640 134731564 4289224320 18446744073709551615 134655421 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8940/statm: 857 412 268 54 0 167 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3428

[startup+0.300165 s]
/proc/loadavg: 0.91 2.18 3.13 5/189 8940
/proc/meminfo: memFree=20486980/32951124 swapFree=67110396/67111528
[pid=8940] ppid=8938 vsize=3824 CPUtime=0.29 cores=4,6
/proc/8940/stat : 8940 (MPhaseSAT) R 8938 8940 8058 0 -1 4202496 565 0 0 0 29 0 0 0 22 0 1 0 550834100 3915776 506 33554432000 134512640 134731564 4289224320 18446744073709551615 6844270 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8940/statm: 956 506 268 54 0 266 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3824

[startup+0.701097 s]
/proc/loadavg: 0.91 2.18 3.13 5/189 8940
/proc/meminfo: memFree=20486980/32951124 swapFree=67110396/67111528
[pid=8940] ppid=8938 vsize=4088 CPUtime=0.69 cores=4,6
/proc/8940/stat : 8940 (MPhaseSAT) R 8938 8940 8058 0 -1 4202496 637 0 0 0 69 0 0 0 23 0 1 0 550834100 4186112 578 33554432000 134512640 134731564 4289224320 18446744073709551615 134720162 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8940/statm: 1022 578 268 54 0 332 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4088

[startup+1.50096 s]
/proc/loadavg: 0.91 2.18 3.13 4/185 8958
/proc/meminfo: memFree=20484556/32951124 swapFree=67110396/67111528
[pid=8940] ppid=8938 vsize=4088 CPUtime=1.49 cores=4,6
/proc/8940/stat : 8940 (MPhaseSAT) R 8938 8940 8058 0 -1 4202496 652 0 0 0 149 0 0 0 25 0 1 0 550834100 4186112 593 33554432000 134512640 134731564 4289224320 18446744073709551615 134609086 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8940/statm: 1022 593 271 54 0 332 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4088

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

[startup+2.30081 s]
/proc/loadavg: 0.91 2.18 3.13 4/185 8958
/proc/meminfo: memFree=20484184/32951124 swapFree=67110396/67111528
[pid=8940] ppid=8938 vsize=4088 CPUtime=2.29 cores=4,6
/proc/8940/stat : 8940 (MPhaseSAT) R 8938 8940 8058 0 -1 4202496 652 0 0 0 229 0 0 0 25 0 1 0 550834100 4186112 593 33554432000 134512640 134731564 4289224320 18446744073709551615 134608928 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8940/statm: 1022 593 271 54 0 332 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 4088

[startup+2.50077 s]
/proc/loadavg: 0.91 2.18 3.13 4/185 8958
/proc/meminfo: memFree=20484184/32951124 swapFree=67110396/67111528
[pid=8940] ppid=8938 vsize=4088 CPUtime=2.49 cores=4,6
/proc/8940/stat : 8940 (MPhaseSAT) R 8938 8940 8058 0 -1 4202496 652 0 0 0 249 0 0 0 25 0 1 0 550834100 4186112 593 33554432000 134512640 134731564 4289224320 18446744073709551615 134605865 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8940/statm: 1022 593 271 54 0 332 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 4088

[startup+2.60075 s]
/proc/loadavg: 0.91 2.18 3.13 4/185 8958
/proc/meminfo: memFree=20484184/32951124 swapFree=67110396/67111528
[pid=8940] ppid=8938 vsize=4088 CPUtime=2.59 cores=4,6
/proc/8940/stat : 8940 (MPhaseSAT) R 8938 8940 8058 0 -1 4202496 652 0 0 0 259 0 0 0 25 0 1 0 550834100 4186112 593 33554432000 134512640 134731564 4289224320 18446744073709551615 134605997 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/8940/statm: 1022 593 271 54 0 332 0
Current children cumulated CPU time (s) 2.59
Current children cumulated vsize (KiB) 4088

Child status: 10
Real time (s): 2.67073
CPU time (s): 2.66359
CPU user time (s): 2.66259
CPU system time (s): 0.000999
CPU usage (%): 99.7327
Max. virtual memory (cumulated for all children) (KiB): 4088

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6626
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= 661
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= 7

runsolver used 0.007998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-24 02:47:14
IDJOB=3273505
IDBENCH=83141
IDSOLVER=1520
FILE ID=node118/3273505-1303606034
RUNJOBID= node118-1303606034-8899
PBS_JOBID= 13150579
Free space on /tmp= 71744 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/crafted/spence/sgen/sgen3-n180-s34713902-sat.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3273505-1303606034/watcher-3273505-1303606034 -o /tmp/evaluation-result-3273505-1303606034/solver-3273505-1303606034 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3273505-1303606034.cnf

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

MD5SUM BENCH= 19292459de25c4f5e9e6f187c00d549d
RANDOM SEED=936023166

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:      20487136 kB
Buffers:       1859584 kB
Cached:       10014552 kB
SwapCached:        600 kB
Active:        8484676 kB
Inactive:      3458068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20487136 kB
SwapTotal:    67111528 kB
SwapFree:     67110396 kB
Dirty:            1288 kB
Writeback:           0 kB
AnonPages:       68392 kB
Mapped:          16132 kB
Slab:           458864 kB
PageTables:       5116 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   254600 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 02:47:17