Trace number 2669333

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
PB/CT 0.1Wrong Opt.0 9.50055 9.50272

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-sc50a.opb
MD5SUMb5ddffc69ae920b5aae5c160b76ce03f
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-60000
Best CPU time to get the best result obtained on this benchmark14.1778
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -60000
Optimality of the best value was proved YES
Number of variables1440
Total number of constraints49
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints49
Minimum length of a constraint60
Maximum length of a constraint120
Number of terms in the objective function 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 8589934592
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 22548578283
Number of bits of the biggest sum of numbers35
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.01	c constraints 49/0 clauses 0/0 units 39
0.00/0.01	c vars 1440
0.00/0.01	c objective 30 + -1073741823
9.39/9.40	c 8.50971 22.6328 5912 336669
9.39/9.40	o 0
9.39/9.41	c 8.5147 22.9961 2649 336669
9.39/9.41	s OPTIMUM FOUND
9.39/9.41	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 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 x151 -x152 x153 x154 x155 -x156 x157 x158 -x159 x160 x161 x162 x163 -x164 x165 -x166 -x167 -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 x188 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Verifier Data

OK	0

Watcher Data

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2669333-1276555540/watcher-2669333-1276555540 -o /tmp/evaluation-result-2669333-1276555540/solver-2669333-1276555540 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669333-1276555540.opb 

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): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.97 0.99 3/106 954
/proc/meminfo: memFree=1671212/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=2208 CPUtime=0
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 265 0 0 0 0 0 0 0 20 0 1 0 31155320 2260992 188 1992294400 134512640 136485738 4293014096 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/954/statm: 552 189 157 482 0 68 0

[startup+0.0905699 s]
/proc/loadavg: 0.91 0.97 0.99 3/106 954
/proc/meminfo: memFree=1671212/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=9100 CPUtime=0.08
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 1951 0 0 0 8 0 0 0 20 0 1 0 31155320 9318400 1874 1992294400 134512640 136485738 4293014096 18446744073709551615 134651030 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 2275 1874 197 482 0 1791 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 9100

[startup+0.101571 s]
/proc/loadavg: 0.91 0.97 0.99 3/106 954
/proc/meminfo: memFree=1671212/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=9492 CPUtime=0.09
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 2088 0 0 0 8 1 0 0 20 0 1 0 31155320 9719808 2011 1992294400 134512640 136485738 4293014096 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 2373 2012 197 482 0 1889 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9492

[startup+0.301589 s]
/proc/loadavg: 0.91 0.97 0.99 3/106 954
/proc/meminfo: memFree=1671212/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=21796 CPUtime=0.29
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 5179 0 0 0 27 2 0 0 20 0 1 0 31155320 22319104 4968 1992294400 134512640 136485738 4293014096 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 5449 4968 228 482 0 4965 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 21796

[startup+0.701627 s]
/proc/loadavg: 0.91 0.97 0.99 3/106 954
/proc/meminfo: memFree=1671212/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=21928 CPUtime=0.69
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 5218 0 0 0 63 6 0 0 21 0 1 0 31155320 22454272 5007 1992294400 134512640 136485738 4293014096 18446744073709551615 135293372 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 5482 5007 228 482 0 4998 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 21928

[startup+1.5017 s]
/proc/loadavg: 0.91 0.97 0.99 2/107 955
/proc/meminfo: memFree=1651860/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=22192 CPUtime=1.5
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 5265 0 0 0 135 15 0 0 23 0 1 0 31155320 22724608 5054 1992294400 134512640 136485738 4293014096 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 5548 5054 228 482 0 5064 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 22192

[startup+3.10185 s]
/proc/loadavg: 0.91 0.97 0.99 2/107 955
/proc/meminfo: memFree=1651364/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=22616 CPUtime=3.09
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 5358 0 0 0 278 31 0 0 25 0 1 0 31155320 23158784 5147 1992294400 134512640 136485738 4293014096 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 5654 5147 228 482 0 5170 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 22616

[startup+6.30115 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 955
/proc/meminfo: memFree=1650620/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=22908 CPUtime=6.29
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 5456 0 0 0 569 60 0 0 25 0 1 0 31155320 23457792 5245 1992294400 134512640 136485738 4293014096 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 5727 5245 228 482 0 5243 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 22908

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

[startup+7.9013 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 955
/proc/meminfo: memFree=1650372/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=23172 CPUtime=7.89
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 5503 0 0 0 714 75 0 0 25 0 1 0 31155320 23728128 5292 1992294400 134512640 136485738 4293014096 18446744073709551615 134880907 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 5793 5292 228 482 0 5309 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 23172

[startup+8.70137 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 955
/proc/meminfo: memFree=1650372/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=23172 CPUtime=8.69
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 5503 0 0 0 788 81 0 0 25 0 1 0 31155320 23728128 5292 1992294400 134512640 136485738 4293014096 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 5793 5292 228 482 0 5309 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 23172

[startup+9.10141 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 955
/proc/meminfo: memFree=1650372/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=23172 CPUtime=9.09
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202496 5503 0 0 0 824 85 0 0 25 0 1 0 31155320 23728128 5292 1992294400 134512640 136485738 4293014096 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/954/statm: 5793 5292 228 482 0 5309 0
Current children cumulated CPU time (s) 9.09
Current children cumulated vsize (KiB) 23172

[startup+9.50145 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 955
/proc/meminfo: memFree=1650372/2059040 swapFree=4135896/4192956
[pid=954] ppid=952 vsize=0 CPUtime=9.49
/proc/954/stat : 954 (pbct) R 952 954 586 0 -1 4202500 5604 0 0 0 860 89 0 0 25 0 1 0 31155320 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/954/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 9.50272
CPU time (s): 9.50055
CPU user time (s): 8.60269
CPU system time (s): 0.897863
CPU usage (%): 99.9772
Max. virtual memory (cumulated for all children) (KiB): 23172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.60269
system time used= 0.897863
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5604
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= 1
involuntary context switches= 10

runsolver used 0.022996 second user time and 0.045993 second system time

The end

Launcher Data

Begin job on node015 at 2010-06-15 00:45:40
IDJOB=2669333
IDBENCH=2449
IDSOLVER=1170
FILE ID=node015/2669333-1276555540
PBS_JOBID= 11173487
Free space on /tmp= 62584 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-sc50a.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669333-1276555540/watcher-2669333-1276555540 -o /tmp/evaluation-result-2669333-1276555540/solver-2669333-1276555540 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669333-1276555540.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b5ddffc69ae920b5aae5c160b76ce03f
RANDOM SEED=655099213

node015.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	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.244
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.48
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.244
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1671616 kB
Buffers:        163200 kB
Cached:         143784 kB
SwapCached:      11036 kB
Active:          86280 kB
Inactive:       234536 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1671616 kB
SwapTotal:     4192956 kB
SwapFree:      4135896 kB
Dirty:            2004 kB
Writeback:           0 kB
AnonPages:       11952 kB
Mapped:           9272 kB
Slab:            44796 kB
PageTables:       4048 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180084 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62580 MiB
End job on node015 at 2010-06-15 00:45:50