Trace number 2684579

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
PB/CT 0.1Wrong UNSAT 0.967852 0.969058

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j30/
normalized-j309_9-sat.opb
MD5SUM13e804dc51f4c233057894b7e80e9077
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.154976
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables3968
Total number of constraints12403
Number of constraints which are clauses12151
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints252
Minimum length of a constraint1
Maximum length of a constraint24
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 16
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 171
Number of bits of the biggest sum of numbers8
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
0.09/0.14	c constraints 252/0 clauses 11975/0 units 109
0.09/0.14	c vars 3968
0.69/0.72	c 0.673897 53.9375 0 0
0.89/0.96	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-2684579-1278432552/watcher-2684579-1278432552 -o /tmp/evaluation-result-2684579-1278432552/solver-2684579-1278432552 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2684579-1278432552.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: 0.47 0.11 0.04 3/106 18076
/proc/meminfo: memFree=1476200/2059040 swapFree=4192956/4192956
[pid=18076] ppid=18074 vsize=2208 CPUtime=0
/proc/18076/stat : 18076 (pbct) R 18074 18076 17984 0 -1 4202496 256 0 0 0 0 0 0 0 20 0 1 0 11462736 2260992 179 1992294400 134512640 136485738 4294165744 18446744073709551615 135856913 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18076/statm: 552 179 157 482 0 68 0

[startup+0.070103 s]
/proc/loadavg: 0.47 0.11 0.04 3/106 18076
/proc/meminfo: memFree=1476200/2059040 swapFree=4192956/4192956
[pid=18076] ppid=18074 vsize=2472 CPUtime=0.06
/proc/18076/stat : 18076 (pbct) R 18074 18076 17984 0 -1 4202496 316 0 0 0 6 0 0 0 20 0 1 0 11462736 2531328 239 1992294400 134512640 136485738 4294165744 18446744073709551615 135856913 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18076/statm: 618 239 157 482 0 134 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2472

[startup+0.101105 s]
/proc/loadavg: 0.47 0.11 0.04 3/106 18076
/proc/meminfo: memFree=1476200/2059040 swapFree=4192956/4192956
[pid=18076] ppid=18074 vsize=2472 CPUtime=0.09
/proc/18076/stat : 18076 (pbct) R 18074 18076 17984 0 -1 4202496 339 0 0 0 9 0 0 0 20 0 1 0 11462736 2531328 262 1992294400 134512640 136485738 4294165744 18446744073709551615 135681199 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18076/statm: 618 262 157 482 0 134 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2472

[startup+0.301118 s]
/proc/loadavg: 0.47 0.11 0.04 3/106 18076
/proc/meminfo: memFree=1476200/2059040 swapFree=4192956/4192956
[pid=18076] ppid=18074 vsize=21740 CPUtime=0.29
/proc/18076/stat : 18076 (pbct) R 18074 18076 17984 0 -1 4202496 5180 0 0 0 28 1 0 0 20 0 1 0 11462736 22261760 5004 1992294400 134512640 136485738 4294165744 18446744073709551615 134719603 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18076/statm: 5435 5005 196 482 0 4951 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 21740

[startup+0.701143 s]
/proc/loadavg: 0.47 0.11 0.04 3/106 18076
/proc/meminfo: memFree=1476200/2059040 swapFree=4192956/4192956
[pid=18076] ppid=18074 vsize=53784 CPUtime=0.69
/proc/18076/stat : 18076 (pbct) R 18074 18076 17984 0 -1 4202496 13516 0 0 0 65 4 0 0 20 0 1 0 11462736 55074816 12677 1992294400 134512640 136485738 4294165744 18446744073709551615 134946487 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18076/statm: 13446 12677 208 482 0 12962 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 53784

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

[startup+0.901155 s]
/proc/loadavg: 0.47 0.11 0.04 3/106 18076
/proc/meminfo: memFree=1476200/2059040 swapFree=4192956/4192956
[pid=18076] ppid=18074 vsize=52516 CPUtime=0.89
/proc/18076/stat : 18076 (pbct) R 18074 18076 17984 0 -1 4202496 13893 0 0 0 85 4 0 0 21 0 1 0 11462736 53776384 12519 1992294400 134512640 136485738 4294165744 18446744073709551615 135844708 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/18076/statm: 13129 12519 242 482 0 12645 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 52516

Child status: 0
Real time (s): 0.969058
CPU time (s): 0.967852
CPU user time (s): 0.91586
CPU system time (s): 0.051992
CPU usage (%): 99.8755
Max. virtual memory (cumulated for all children) (KiB): 53784

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.91586
system time used= 0.051992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13894
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= 2
involuntary context switches= 15

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node039 at 2010-07-06 18:09:12
IDJOB=2684579
IDBENCH=73074
IDSOLVER=1170
FILE ID=node039/2684579-1278432552
PBS_JOBID= 11233443
Free space on /tmp= 62528 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j30/normalized-j309_9-sat.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2684579-1278432552/watcher-2684579-1278432552 -o /tmp/evaluation-result-2684579-1278432552/solver-2684579-1278432552 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2684579-1278432552.opb

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

MD5SUM BENCH= 13e804dc51f4c233057894b7e80e9077
RANDOM SEED=702736878

node039.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		: 3000.242
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		: 3000.242
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1476728 kB
Buffers:        103296 kB
Cached:         347652 kB
SwapCached:          0 kB
Active:         176296 kB
Inactive:       334500 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1476728 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2564 kB
Writeback:           0 kB
AnonPages:       59852 kB
Mapped:          14404 kB
Slab:            49692 kB
PageTables:       4148 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179588 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= 62528 MiB
End job on node039 at 2010-07-06 18:09:13