Trace number 2668572

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 UNSAT 1.51877 1.51921

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-mkc.opb
MD5SUMeae2e8a732d92a062f083ccb58900b63
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-59125
Best CPU time to get the best result obtained on this benchmark1800.13
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -144250
Optimality of the best value was proved NO
Number of variables5383
Total number of constraints3279
Number of constraints which are clauses2977
Number of constraints which are cardinality constraints (but not clauses)276
Number of constraints which are nor clauses,nor cardinality constraints26
Minimum length of a constraint2
Maximum length of a constraint2952
Number of terms in the objective function 2946
Biggest coefficient in the objective function 20000
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 31442101
Number of bits of the sum of numbers in the objective function 25
Biggest number in a constraint 67108864000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 138201238403
Number of bits of the biggest sum of numbers38
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
0.03/0.07	c constraints 302/0 clauses 2962/0 units 17
0.03/0.07	c vars 5383
0.03/0.07	c objective 2932 + -30937416
1.10/1.15	c 1.05684 82.8477 0 0
1.49/1.51	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668572-1276569831/watcher-2668572-1276569831 -o /tmp/evaluation-result-2668572-1276569831/solver-2668572-1276569831 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668572-1276569831.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: 0.85 0.97 1.06 2/106 2599
/proc/meminfo: memFree=1862292/2059040 swapFree=4140416/4192956
[pid=2599] ppid=2597 vsize=2488 CPUtime=0
/proc/2599/stat : 2599 (pbct) R 2597 2599 2574 0 -1 4202496 304 0 0 0 0 0 0 0 20 0 1 0 30639430 2547712 226 1992294400 134512640 136485738 4287953440 18446744073709551615 135171956 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/2599/statm: 622 227 149 482 0 138 0

[startup+0.038417 s]
/proc/loadavg: 0.85 0.97 1.06 2/106 2599
/proc/meminfo: memFree=1862292/2059040 swapFree=4140416/4192956
[pid=2599] ppid=2597 vsize=2884 CPUtime=0.03
/proc/2599/stat : 2599 (pbct) R 2597 2599 2574 0 -1 4202496 409 0 0 0 3 0 0 0 20 0 1 0 30639430 2953216 331 1992294400 134512640 136485738 4287953440 18446744073709551615 135297536 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/2599/statm: 721 331 156 482 0 237 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 2884

[startup+0.100426 s]
/proc/loadavg: 0.85 0.97 1.06 2/106 2599
/proc/meminfo: memFree=1862292/2059040 swapFree=4140416/4192956
[pid=2599] ppid=2597 vsize=7124 CPUtime=0.09
/proc/2599/stat : 2599 (pbct) R 2597 2599 2574 0 -1 4202496 1443 0 0 0 9 0 0 0 20 0 1 0 30639430 7294976 1365 1992294400 134512640 136485738 4287953440 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/2599/statm: 1781 1367 194 482 0 1297 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7124

[startup+0.300463 s]
/proc/loadavg: 0.85 0.97 1.06 2/106 2599
/proc/meminfo: memFree=1862292/2059040 swapFree=4140416/4192956
[pid=2599] ppid=2597 vsize=28320 CPUtime=0.29
/proc/2599/stat : 2599 (pbct) R 2597 2599 2574 0 -1 4202496 6781 0 0 0 26 3 0 0 20 0 1 0 30639430 28999680 6637 1992294400 134512640 136485738 4287953440 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/2599/statm: 7080 6638 198 482 0 6596 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 28320

[startup+0.700538 s]
/proc/loadavg: 0.85 0.97 1.06 2/106 2599
/proc/meminfo: memFree=1862292/2059040 swapFree=4140416/4192956
[pid=2599] ppid=2597 vsize=51568 CPUtime=0.69
/proc/2599/stat : 2599 (pbct) R 2597 2599 2574 0 -1 4202496 13067 0 0 0 63 6 0 0 21 0 1 0 30639430 52805632 12453 1992294400 134512640 136485738 4287953440 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/2599/statm: 12892 12453 198 482 0 12408 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 51568

[startup+1.50069 s]
/proc/loadavg: 0.85 0.97 1.06 2/107 2600
/proc/meminfo: memFree=1787264/2059040 swapFree=4140416/4192956
[pid=2599] ppid=2597 vsize=79192 CPUtime=1.49
/proc/2599/stat : 2599 (pbct) R 2597 2599 2574 0 -1 4202496 21639 0 0 0 139 10 0 0 23 0 1 0 30639430 81092608 18938 1992294400 134512640 136485738 4287953440 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/2599/statm: 19798 18938 246 482 0 19314 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 79192

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

Child status: 0
Real time (s): 1.51921
CPU time (s): 1.51877
CPU user time (s): 1.40879
CPU system time (s): 0.109983
CPU usage (%): 99.9708
Max. virtual memory (cumulated for all children) (KiB): 83568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.40878
system time used= 0.109983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 21640
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= 23

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node019 at 2010-06-15 04:43:51
IDJOB=2668572
IDBENCH=2519
IDSOLVER=1170
FILE ID=node019/2668572-1276569831
PBS_JOBID= 11173520
Free space on /tmp= 62416 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-mkc.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668572-1276569831/watcher-2668572-1276569831 -o /tmp/evaluation-result-2668572-1276569831/solver-2668572-1276569831 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668572-1276569831.opb

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

MD5SUM BENCH= eae2e8a732d92a062f083ccb58900b63
RANDOM SEED=2018866453

node019.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1862696 kB
Buffers:         22336 kB
Cached:          86388 kB
SwapCached:       5704 kB
Active:          74152 kB
Inactive:        46924 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1862696 kB
SwapTotal:     4192956 kB
SwapFree:      4140416 kB
Dirty:            2272 kB
Writeback:          52 kB
AnonPages:       10796 kB
Mapped:          13164 kB
Slab:            53500 kB
PageTables:       4012 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181512 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= 62412 MiB
End job on node019 at 2010-06-15 04:43:53