Trace number 3481617

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 NameAnswerobjective functionCPU timeWall clock time
borg pb-opt-11.04.03Wrong Cert. 0.506922 0.795632

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-LIN/submittedPB07/
poldner/PB/testset/normalized-8_16.opb
MD5SUMa50db2fb26a0b36972cba004cae6f3a3
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark5852
Best CPU time to get the best result obtained on this benchmark0.009998
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5852
Optimality of the best value was proved YES
Number of variables136
Total number of constraints144
Number of constraints which are clauses128
Number of constraints which are cardinality constraints (but not clauses)16
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint8
Number of terms in the objective function 136
Biggest coefficient in the objective function 1311
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 58669
Number of bits of the sum of numbers in the objective function 16
Biggest number in a constraint 1311
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 58669
Number of bits of the biggest sum of numbers16
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.32/0.69	c INFO: loaded portfolio from HOME/etc/borg-mix+class.opt.pickle
0.32/0.69	c INFO: solving HOME/instance-3481617-1307577599.opb
0.32/0.69	c INFO: parsing took 0.00 s
0.40/0.70	c INFO: features took 0.00 CPU seconds
0.40/0.72	c INFO: running scip-2.0.1-spx@0 for 45 with 1799 remaining (b = 0.71)
0.40/0.77	s OPTIMUM FOUND
0.40/0.77	v -x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 x15 -x16 -x17 -x18 x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 x27 -x28 -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 x40 -x41 -x42 x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 x56 -x57 -x58 x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 x72 -x73 -x74 -x75 -x76 -x77 -x78 x79 -x80 -x81 -x82 x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 x96 -x97 -x98 -x99 -x100 -x101 -x102 x103 -x104 -x105 -x106 x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 x131 -x132 -x133 -x134 x135 x136

Verifier Data 

FAILED
ERROR: unsatisfied constraint on line 0
	0=1

Falsified constraint is:
+1*x1[=0] +1*x2[=0] +1*x3[=0] +1*x4[=0] +1*x5[=0] +1*x6[=0] +1*x7[=0] +1*x8[=0] = 1

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3481617-1307577599/watcher-3481617-1307577599 -o /tmp/evaluation-result-3481617-1307577599/solver-3481617-1307577599 -C 1800 -W 1900 -M 15500 python HOME/solve HOME/etc/borg-mix+class.opt.pickle HOME/instance-3481617-1307577599.opb -seed 976299606 -budget 1800 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.92 1.96 1.46 3/574 30709
/proc/meminfo: memFree=19942392/32951124 swapFree=57370024/67111528
[pid=30709] ppid=30707 vsize=16236 CPUtime=0 cores=1,3,5,7
/proc/30709/stat : 30709 (python) R 30707 30709 30366 0 -1 4202496 1038 0 0 0 0 0 0 0 17 0 1 0 850175505 16625664 909 33554432000 4194304 5683644 140733943902304 18446744073709551615 5193717 0 0 16781312 2 0 0 0 17 5 0 0 0
/proc/30709/statm: 4059 909 380 364 0 546 0

[startup+0.105296 s]
/proc/loadavg: 1.92 1.96 1.46 3/574 30709
/proc/meminfo: memFree=19942392/32951124 swapFree=57370024/67111528
[pid=30709] ppid=30707 vsize=87824 CPUtime=0.07 cores=1,3,5,7
/proc/30709/stat : 30709 (python) R 30707 30709 30366 0 -1 4202496 2689 0 0 0 5 2 0 0 17 0 1 0 850175505 89931776 2404 33554432000 4194304 5683644 140733943902304 18446744073709551615 4651254 0 0 16781312 2 0 0 0 17 5 0 0 0
/proc/30709/statm: 21956 2404 733 364 0 1621 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 87824

[startup+0.200259 s]
/proc/loadavg: 1.92 1.96 1.46 3/574 30709
/proc/meminfo: memFree=19942392/32951124 swapFree=57370024/67111528
[pid=30709] ppid=30707 vsize=117900 CPUtime=0.13 cores=1,3,5,7
/proc/30709/stat : 30709 (python) S 30707 30709 30366 0 -1 4202496 4919 928 1 0 9 4 0 0 17 0 1 0 850175505 120729600 3345 33554432000 4194304 5683644 140733943902304 18446744073709551615 228095446885 0 2147483391 16781312 2 18446744071699207358 0 0 17 5 0 0 0
/proc/30709/statm: 29475 3345 916 364 0 2445 0
Current children cumulated CPU time (s) 0.13
Current children cumulated vsize (KiB) 117900

[startup+0.30024 s]
/proc/loadavg: 1.92 1.96 1.46 3/574 30709
/proc/meminfo: memFree=19942392/32951124 swapFree=57370024/67111528
[pid=30709] ppid=30707 vsize=123740 CPUtime=0.18 cores=1,3,5,7
/proc/30709/stat : 30709 (python) R 30707 30709 30366 0 -1 4202496 5358 928 1 0 11 7 0 0 16 0 1 0 850175505 126709760 3744 33554432000 4194304 5683644 140733943902304 18446744073709551615 4620076 0 0 16781312 2 0 0 0 17 5 0 0 0
/proc/30709/statm: 30935 3744 987 364 0 2767 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 123740

[startup+0.700166 s]
/proc/loadavg: 1.92 1.96 1.46 3/574 30709
/proc/meminfo: memFree=19942392/32951124 swapFree=57370024/67111528
[pid=30709] ppid=30707 vsize=282404 CPUtime=0.4 cores=1,3,5,7
/proc/30709/stat : 30709 (python) R 30707 30709 30366 0 -1 4202496 9114 928 1 0 28 12 0 0 15 0 1 0 850175505 289181696 6975 33554432000 4194304 5683644 140733943902304 18446744073709551615 4623648 0 0 16781312 33554434 0 0 0 17 5 0 0 0
/proc/30709/statm: 70601 6975 1815 364 0 5494 0
Current children cumulated CPU time (s) 0.4
Current children cumulated vsize (KiB) 282404

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

[startup+0.700166 s]
/proc/loadavg: 1.92 1.96 1.46 3/574 30709
/proc/meminfo: memFree=19942392/32951124 swapFree=57370024/67111528
[pid=30709] ppid=30707 vsize=282404 CPUtime=0.4 cores=1,3,5,7
/proc/30709/stat : 30709 (python) R 30707 30709 30366 0 -1 4202496 9114 928 1 0 28 12 0 0 15 0 1 0 850175505 289181696 6975 33554432000 4194304 5683644 140733943902304 18446744073709551615 4623648 0 0 16781312 33554434 0 0 0 17 5 0 0 0
/proc/30709/statm: 70601 6975 1815 364 0 5494 0
Current children cumulated CPU time (s) 0.4
Current children cumulated vsize (KiB) 282404

Child status: 0
Real time (s): 0.795632
CPU time (s): 0.506922
CPU user time (s): 0.359945
CPU system time (s): 0.146977
CPU usage (%): 63.7131
Max. virtual memory (cumulated for all children) (KiB): 282404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.359945
system time used= 0.146977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19842
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2886
involuntary context switches= 13

runsolver used 0.005999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node142 at 2011-06-09 02:00:00
IDJOB=3481617
IDBENCH=24966
IDSOLVER=1970
FILE ID=node142/3481617-1307577599
RUNJOBID= node142-1307576354-30385
PBS_JOBID= 13547657
Free space on /tmp= 73856 MiB

SOLVER NAME= borg pb-opt-11.04.03
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/poldner/PB/testset/normalized-8_16.opb
COMMAND LINE= python DIR/solve DIR/etc/borg-mix+class.opt.pickle BENCHNAME -seed RANDOMSEED -budget TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3481617-1307577599/watcher-3481617-1307577599 -o /tmp/evaluation-result-3481617-1307577599/solver-3481617-1307577599 -C 1800 -W 1900 -M 15500  python HOME/solve HOME/etc/borg-mix+class.opt.pickle HOME/instance-3481617-1307577599.opb -seed 976299606 -budget 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= a50db2fb26a0b36972cba004cae6f3a3
RANDOM SEED=976299606

node142.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		: 2666.846
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		: 2666.846
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	: 5131.95
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		: 2666.846
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	: 5332.82
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		: 2666.846
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	: 5332.67
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		: 2666.846
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	: 5332.81
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		: 2666.846
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		: 2666.846
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	: 5332.82
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		: 2666.846
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:     32951124 kB
MemFree:      19942548 kB
Buffers:        150956 kB
Cached:         465040 kB
SwapCached:      11428 kB
Active:       12553144 kB
Inactive:       164020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19942548 kB
SwapTotal:    67111528 kB
SwapFree:     57370024 kB
Dirty:          101980 kB
Writeback:          24 kB
AnonPages:    12098396 kB
Mapped:          50492 kB
Slab:           136080 kB
PageTables:      84540 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 149492388 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= 73756 MiB
End job on node142 at 2011-06-09 02:00:01