Trace number 3094329

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 1.23181 1.23299

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 version 401 by Jingchao Chen,  April 1, 2011
1.19/1.23	c input CNF file=HOME/instance-3094329-1301753796.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=1.230813

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-3094329-1301753796/watcher-3094329-1301753796 -o /tmp/evaluation-result-3094329-1301753796/solver-3094329-1301753796 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094329-1301753796.cnf 

running on 2 cores: 1,3

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 3.94 4/189 13984
/proc/meminfo: memFree=19160536/32950928 swapFree=67111528/67111528
[pid=13984] ppid=13982 vsize=3040 CPUtime=0 cores=1,3
/proc/13984/stat : 13984 (MPhaseSAT) R 13982 13984 13129 0 -1 4202496 335 0 0 0 0 0 0 0 25 0 1 0 365610276 3112960 274 33554432000 134512640 134731564 4291226912 18446744073709551615 134531593 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13984/statm: 760 274 225 54 0 70 0

[startup+0.024415 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 13984
/proc/meminfo: memFree=19160536/32950928 swapFree=67111528/67111528
[pid=13984] ppid=13982 vsize=3488 CPUtime=0.02 cores=1,3
/proc/13984/stat : 13984 (MPhaseSAT) R 13982 13984 13129 0 -1 4202496 419 0 0 0 2 0 0 0 25 0 1 0 365610276 3571712 356 33554432000 134512640 134731564 4291226912 18446744073709551615 134580483 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13984/statm: 872 356 238 54 0 182 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3488

[startup+0.100401 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 13984
/proc/meminfo: memFree=19160536/32950928 swapFree=67111528/67111528
[pid=13984] ppid=13982 vsize=3576 CPUtime=0.09 cores=1,3
/proc/13984/stat : 13984 (MPhaseSAT) R 13982 13984 13129 0 -1 4202496 517 0 0 0 9 0 0 0 25 0 1 0 365610276 3661824 453 33554432000 134512640 134731564 4291226912 18446744073709551615 134665511 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13984/statm: 894 453 263 54 0 204 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3576

[startup+0.300364 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 13984
/proc/meminfo: memFree=19160536/32950928 swapFree=67111528/67111528
[pid=13984] ppid=13982 vsize=4104 CPUtime=0.29 cores=1,3
/proc/13984/stat : 13984 (MPhaseSAT) R 13982 13984 13129 0 -1 4202496 642 0 0 0 29 0 0 0 25 0 1 0 365610276 4202496 578 33554432000 134512640 134731564 4291226912 18446744073709551615 134720186 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13984/statm: 1026 578 268 54 0 336 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4104

[startup+0.700291 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 13984
/proc/meminfo: memFree=19160536/32950928 swapFree=67111528/67111528
[pid=13984] ppid=13982 vsize=4368 CPUtime=0.69 cores=1,3
/proc/13984/stat : 13984 (MPhaseSAT) R 13982 13984 13129 0 -1 4202496 716 0 0 0 69 0 0 0 25 0 1 0 365610276 4472832 652 33554432000 134512640 134731564 4291226912 18446744073709551615 134659303 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13984/statm: 1092 652 268 54 0 402 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4368

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

[startup+1.10622 s]
/proc/loadavg: 4.00 4.00 3.94 5/190 13985
/proc/meminfo: memFree=19158196/32950928 swapFree=67111528/67111528
[pid=13984] ppid=13982 vsize=4764 CPUtime=1.1 cores=1,3
/proc/13984/stat : 13984 (MPhaseSAT) R 13982 13984 13129 0 -1 4202496 822 0 0 0 110 0 0 0 25 0 1 0 365610276 4878336 758 33554432000 134512640 134731564 4291226912 18446744073709551615 134605464 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13984/statm: 1191 758 271 54 0 501 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4764

[startup+1.2002 s]
/proc/loadavg: 4.00 4.00 3.94 5/190 13985
/proc/meminfo: memFree=19158196/32950928 swapFree=67111528/67111528
[pid=13984] ppid=13982 vsize=4764 CPUtime=1.19 cores=1,3
/proc/13984/stat : 13984 (MPhaseSAT) R 13982 13984 13129 0 -1 4202496 822 0 0 0 119 0 0 0 25 0 1 0 365610276 4878336 758 33554432000 134512640 134731564 4291226912 18446744073709551615 134605531 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13984/statm: 1191 758 271 54 0 501 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 4764

Child status: 10
Real time (s): 1.23299
CPU time (s): 1.23181
CPU user time (s): 1.23181
CPU system time (s): 0
CPU usage (%): 99.9041
Max. virtual memory (cumulated for all children) (KiB): 4764

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.23181
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= 831
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 0.006998 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node116 at 2011-04-02 16:16:36
IDJOB=3094329
IDBENCH=82811
IDSOLVER=1520
FILE ID=node116/3094329-1301753796
RUNJOBID= node116-1301748570-13149
PBS_JOBID= 12841021
Free space on /tmp= 71264 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S752966552-099.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094329-1301753796/watcher-3094329-1301753796 -o /tmp/evaluation-result-3094329-1301753796/solver-3094329-1301753796 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094329-1301753796.cnf

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

MD5SUM BENCH= c27e99aa66f5519277e3446434cc73f8
RANDOM SEED=73280456

node116.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		: 2666.826
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		: 2666.826
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		: 2666.826
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	: 5332.75
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		: 2666.826
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		: 2666.826
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	: 5332.77
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		: 2666.826
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		: 2666.826
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		: 2666.826
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:      19160808 kB
Buffers:        387316 kB
Cached:       13012168 kB
SwapCached:          0 kB
Active:        9105120 kB
Inactive:      4377180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      19160808 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             884 kB
Writeback:           0 kB
AnonPages:       82692 kB
Mapped:          16904 kB
Slab:           244380 kB
PageTables:       5180 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   270404 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= 71264 MiB
End job on node116 at 2011-04-02 16:16:37