Trace number 3273391

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
PicoSAT 941SAT 1.9807 1.98682

General information on the benchmark

Namecrafted/spence/sgen/
sgen3-n160-s40283905-sat.cnf
MD5SUM8e3c134eb643f2d9a45c884774c054a8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.19497
Satisfiable
(Un)Satisfiability was proved
Number of variables160
Number of clauses384
Sum of the clauses size960
Maximum clause length5
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2320
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 564
Number of clauses of size over 50

Solver Data 

1.89/1.98	s SATISFIABLE
1.89/1.98	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
1.89/1.98	v 26 27 -28 29 30 31 -32 -33 -34 -35 36 -37 38 39 -40 41 -42 43 -44 45 -46 47
1.89/1.98	v 48 49 -50 51 52 53 54 -55 56 57 -58 -59 60 61 -62 -63 64 65 -66 67 -68 69 70
1.89/1.98	v -71 72 73 -74 75 -76 -77 -78 79 -80 81 -82 -83 84 -85 -86 -87 -88 89 -90 -91
1.89/1.98	v -92 -93 94 95 96 97 98 -99 100 101 -102 -103 104 -105 -106 -107 -108 109 110
1.89/1.98	v 111 112 -113 -114 -115 116 -117 118 -119 -120 -121 -122 123 124 -125 -126
1.89/1.98	v -127 -128 -129 130 131 132 -133 -134 -135 136 137 -138 139 140 -141 -142 -143
1.89/1.98	v -144 -145 -146 -147 148 -149 -150 151 -152 -153 -154 -155 156 -157 -158 159
1.89/1.98	v 160 0

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-3273391-1303605514/watcher-3273391-1303605514 -o /tmp/evaluation-result-3273391-1303605514/solver-3273391-1303605514 -C 2400 -W 1300 -M 7680 picosat HOME/instance-3273391-1303605514.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: 0.87 1.36 2.46 5/182 24646
/proc/meminfo: memFree=14483424/32951124 swapFree=67111528/67111528
[pid=24646] ppid=24642 vsize=1744 CPUtime=0 cores=4,6
/proc/24646/stat : 24646 (picosat) R 24642 24646 24048 0 -1 4202496 176 0 0 0 0 0 0 0 18 0 1 0 472149248 1785856 122 33554432000 134512640 134603332 4294393008 18446744073709551615 134563945 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/24646/statm: 436 122 97 23 0 62 0

[startup+0.0498999 s]
/proc/loadavg: 0.87 1.36 2.46 5/182 24646
/proc/meminfo: memFree=14483424/32951124 swapFree=67111528/67111528
[pid=24646] ppid=24642 vsize=1744 CPUtime=0.04 cores=4,6
/proc/24646/stat : 24646 (picosat) R 24642 24646 24048 0 -1 4202496 178 0 0 0 4 0 0 0 18 0 1 0 472149248 1785856 124 33554432000 134512640 134603332 4294393008 18446744073709551615 134550850 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/24646/statm: 436 124 97 23 0 62 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1744

[startup+0.100886 s]
/proc/loadavg: 0.87 1.36 2.46 5/182 24646
/proc/meminfo: memFree=14483424/32951124 swapFree=67111528/67111528
[pid=24646] ppid=24642 vsize=1744 CPUtime=0.09 cores=4,6
/proc/24646/stat : 24646 (picosat) R 24642 24646 24048 0 -1 4202496 180 0 0 0 9 0 0 0 18 0 1 0 472149248 1785856 126 33554432000 134512640 134603332 4294393008 18446744073709551615 134527450 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/24646/statm: 436 126 97 23 0 62 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1744

[startup+0.3008 s]
/proc/loadavg: 0.87 1.36 2.46 5/182 24646
/proc/meminfo: memFree=14483424/32951124 swapFree=67111528/67111528
[pid=24646] ppid=24642 vsize=1744 CPUtime=0.29 cores=4,6
/proc/24646/stat : 24646 (picosat) R 24642 24646 24048 0 -1 4202496 182 0 0 0 29 0 0 0 18 0 1 0 472149248 1785856 128 33554432000 134512640 134603332 4294393008 18446744073709551615 134563779 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/24646/statm: 436 128 97 23 0 62 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1744

[startup+0.700695 s]
/proc/loadavg: 0.87 1.36 2.46 5/182 24646
/proc/meminfo: memFree=14483424/32951124 swapFree=67111528/67111528
[pid=24646] ppid=24642 vsize=1744 CPUtime=0.69 cores=4,6
/proc/24646/stat : 24646 (picosat) R 24642 24646 24048 0 -1 4202496 184 0 0 0 69 0 0 0 18 0 1 0 472149248 1785856 130 33554432000 134512640 134603332 4294393008 18446744073709551615 134564288 0 0 4096 0 0 0 0 17 6 0 0 0
/proc/24646/statm: 436 130 97 23 0 62 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1744

[startup+1.50055 s]
/proc/loadavg: 0.87 1.36 2.46 5/194 24668
/proc/meminfo: memFree=14481584/32951124 swapFree=67111528/67111528
[pid=24646] ppid=24642 vsize=1744 CPUtime=1.49 cores=4,6
/proc/24646/stat : 24646 (picosat) R 24642 24646 24048 0 -1 4202496 187 0 0 0 149 0 0 0 20 0 1 0 472149248 1785856 133 33554432000 134512640 134603332 4294393008 18446744073709551615 134564852 0 0 4096 0 0 0 0 17 6 0 0 0
/proc/24646/statm: 436 133 97 23 0 62 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1744

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

[startup+1.90047 s]
/proc/loadavg: 0.87 1.36 2.46 5/194 24668
/proc/meminfo: memFree=14481584/32951124 swapFree=67111528/67111528
[pid=24646] ppid=24642 vsize=1744 CPUtime=1.89 cores=4,6
/proc/24646/stat : 24646 (picosat) R 24642 24646 24048 0 -1 4202496 188 0 0 0 189 0 0 0 20 0 1 0 472149248 1785856 134 33554432000 134512640 134603332 4294393008 18446744073709551615 134563534 0 0 4096 0 0 0 0 17 6 0 0 0
/proc/24646/statm: 436 134 97 23 0 62 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 1744

Child status: 10
Real time (s): 1.98682
CPU time (s): 1.9807
CPU user time (s): 1.9797
CPU system time (s): 0.000999
CPU usage (%): 99.6919
Max. virtual memory (cumulated for all children) (KiB): 1744

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9797
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= 202
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= 5
involuntary context switches= 63

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node135 at 2011-04-24 02:38:34
IDJOB=3273391
IDBENCH=83138
IDSOLVER=1604
FILE ID=node135/3273391-1303605514
RUNJOBID= node135-1303605512-24626
PBS_JOBID= 13150607
Free space on /tmp= 71360 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT11/crafted/spence/sgen/sgen3-n160-s40283905-sat.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3273391-1303605514/watcher-3273391-1303605514 -o /tmp/evaluation-result-3273391-1303605514/solver-3273391-1303605514 -C 2400 -W 1300 -M 7680  picosat HOME/instance-3273391-1303605514.cnf

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

MD5SUM BENCH= 8e3c134eb643f2d9a45c884774c054a8
RANDOM SEED=1850087209

node135.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		: 2666.851
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		: 2666.851
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	: 5332.83
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		: 2666.851
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		: 2666.851
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	: 6640.14
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		: 2666.851
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	: 5332.78
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		: 2666.851
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		: 2666.851
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		: 2666.851
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      14483836 kB
Buffers:       2059088 kB
Cached:       15747672 kB
SwapCached:          0 kB
Active:        7339416 kB
Inactive:     10533656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      14483836 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             124 kB
Writeback:           0 kB
AnonPages:       65432 kB
Mapped:          14436 kB
Slab:           530960 kB
PageTables:       4900 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   197928 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71360 MiB
End job on node135 at 2011-04-24 02:38:36