Trace number 3095529

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 1.22781 1.23052

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S752966552-099.SATISFIABLE.cnf
MD5SUMc27e99aa66f5519277e3446434cc73f8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05699
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 

1.19/1.23	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
1.19/1.23	c input CNF file=HOME/instance-3095529-1301753788.cnf 
1.19/1.23	c Clause#=3727  var#=175  ratio=21 
1.19/1.23	c Simplified clause#=3727 
1.19/1.23	c XOR_varElimination deleted var#=0 clauses#=3727 
1.19/1.23	c inative var#=0 
1.19/1.23	c free var#=175  
1.19/1.23	c local search on 
1.19/1.23	c A solution found by local search 
1.19/1.23	c unfixed var#=0 var#=175 
1.19/1.23	c verified 
1.19/1.23	c 
1.19/1.23	s SATISFIABLE
1.19/1.23	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 
1.19/1.23	v 0
1.19/1.23	c 
1.19/1.23	c  Running time=1.226813

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-3095529-1301753788/watcher-3095529-1301753788 -o /tmp/evaluation-result-3095529-1301753788/solver-3095529-1301753788 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095529-1301753788.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: 3.76 3.95 3.93 4/189 28740
/proc/meminfo: memFree=20540068/32950928 swapFree=67111528/67111528
[pid=28740] ppid=28738 vsize=3140 CPUtime=0 cores=4,6
/proc/28740/stat : 28740 (MPhaseSAT_M) R 28738 28740 27938 0 -1 4202496 330 0 0 0 0 0 0 0 25 0 1 0 365609523 3215360 269 33554432000 134512640 134829744 4287996672 18446744073709551615 10139834 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28740/statm: 785 269 225 78 0 71 0

[startup+0.069958 s]
/proc/loadavg: 3.76 3.95 3.93 4/189 28740
/proc/meminfo: memFree=20540068/32950928 swapFree=67111528/67111528
[pid=28740] ppid=28738 vsize=3588 CPUtime=0.06 cores=4,6
/proc/28740/stat : 28740 (MPhaseSAT_M) R 28738 28740 27938 0 -1 4202496 421 0 0 0 6 0 0 0 25 0 1 0 365609523 3674112 358 33554432000 134512640 134829744 4287996672 18446744073709551615 134580590 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28740/statm: 897 358 238 78 0 183 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3588

[startup+0.100936 s]
/proc/loadavg: 3.76 3.95 3.93 4/189 28740
/proc/meminfo: memFree=20540068/32950928 swapFree=67111528/67111528
[pid=28740] ppid=28738 vsize=3676 CPUtime=0.09 cores=4,6
/proc/28740/stat : 28740 (MPhaseSAT_M) R 28738 28740 27938 0 -1 4202496 519 0 0 0 9 0 0 0 25 0 1 0 365609523 3764224 455 33554432000 134512640 134829744 4287996672 18446744073709551615 134626865 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28740/statm: 919 455 263 78 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3676

[startup+0.300899 s]
/proc/loadavg: 3.76 3.95 3.93 4/189 28740
/proc/meminfo: memFree=20540068/32950928 swapFree=67111528/67111528
[pid=28740] ppid=28738 vsize=4204 CPUtime=0.29 cores=4,6
/proc/28740/stat : 28740 (MPhaseSAT_M) R 28738 28740 27938 0 -1 4202496 646 0 0 0 29 0 0 0 25 0 1 0 365609523 4304896 582 33554432000 134512640 134829744 4287996672 18446744073709551615 134657872 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28740/statm: 1051 582 270 78 0 337 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4204

[startup+0.700826 s]
/proc/loadavg: 3.76 3.95 3.93 4/189 28740
/proc/meminfo: memFree=20540068/32950928 swapFree=67111528/67111528
[pid=28740] ppid=28738 vsize=4468 CPUtime=0.69 cores=4,6
/proc/28740/stat : 28740 (MPhaseSAT_M) R 28738 28740 27938 0 -1 4202496 720 0 0 0 69 0 0 0 25 0 1 0 365609523 4575232 656 33554432000 134512640 134829744 4287996672 18446744073709551615 9994586 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28740/statm: 1117 656 270 78 0 403 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4468

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

[startup+1.10675 s]
/proc/loadavg: 3.76 3.95 3.93 5/190 28768
/proc/meminfo: memFree=20538084/32950928 swapFree=67111528/67111528
[pid=28740] ppid=28738 vsize=4864 CPUtime=1.1 cores=4,6
/proc/28740/stat : 28740 (MPhaseSAT_M) R 28738 28740 27938 0 -1 4202496 826 0 0 0 110 0 0 0 25 0 1 0 365609523 4980736 762 33554432000 134512640 134829744 4287996672 18446744073709551615 134605755 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28740/statm: 1216 762 273 78 0 502 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4864

[startup+1.20073 s]
/proc/loadavg: 3.76 3.95 3.93 5/190 28768
/proc/meminfo: memFree=20538084/32950928 swapFree=67111528/67111528
[pid=28740] ppid=28738 vsize=4864 CPUtime=1.19 cores=4,6
/proc/28740/stat : 28740 (MPhaseSAT_M) R 28738 28740 27938 0 -1 4202496 826 0 0 0 119 0 0 0 25 0 1 0 365609523 4980736 762 33554432000 134512640 134829744 4287996672 18446744073709551615 134605688 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28740/statm: 1216 762 273 78 0 502 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 4864

Child status: 10
Real time (s): 1.23052
CPU time (s): 1.22781
CPU user time (s): 1.22681
CPU system time (s): 0.000999
CPU usage (%): 99.7796
Max. virtual memory (cumulated for all children) (KiB): 4864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.22681
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= 835
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 0.000999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node114 at 2011-04-02 16:16:28
IDJOB=3095529
IDBENCH=82811
IDSOLVER=1522
FILE ID=node114/3095529-1301753788
RUNJOBID= node114-1301748575-27957
PBS_JOBID= 12841023
Free space on /tmp= 70640 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S752966552-099.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095529-1301753788/watcher-3095529-1301753788 -o /tmp/evaluation-result-3095529-1301753788/solver-3095529-1301753788 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095529-1301753788.cnf

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

MD5SUM BENCH= c27e99aa66f5519277e3446434cc73f8
RANDOM SEED=1158785770

node114.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		: 2666.848
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		: 2666.848
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		: 2666.848
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		: 2666.848
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	: 5332.73
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		: 2666.848
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		: 2666.848
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		: 2666.848
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	: 5332.74
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		: 2666.848
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:     32950928 kB
MemFree:      20540100 kB
Buffers:        379128 kB
Cached:       11600172 kB
SwapCached:          0 kB
Active:        8033712 kB
Inactive:      4070892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      20540100 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1184 kB
Writeback:           0 kB
AnonPages:      124380 kB
Mapped:          16828 kB
Slab:           243268 kB
PageTables:       4936 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   312796 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= 70636 MiB
End job on node114 at 2011-04-02 16:16:30