Trace number 2674532

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
PBPASSolver 2010-06-13? (MO) 13.51 13.631

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/
normalized-cache-ibm-q-unbounded.Icl2arity.ucl.opb
MD5SUMf83049a5e6f779c8a894a05e03ae7f50
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark2.83957
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables23837
Total number of constraints67568
Number of constraints which are clauses64398
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3170
Minimum length of a constraint1
Maximum length of a constraint13
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 66
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 256
Number of bits of the biggest sum of numbers9
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

13.51/13.62	c 23837 67568 0 0 0 0 0 0

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-2674532-1276791823/watcher-2674532-1276791823 -o /tmp/evaluation-result-2674532-1276791823/solver-2674532-1276791823 -C 1800 -W 2000 -M 1800 run HOME/instance-2674532-1276791823.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: 1.00 1.00 1.00 3/106 16237
/proc/meminfo: memFree=1729288/2059040 swapFree=4136136/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0

[startup+0.048284 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 16237
/proc/meminfo: memFree=1729288/2059040 swapFree=4136136/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101286 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 16237
/proc/meminfo: memFree=1729288/2059040 swapFree=4136136/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.301302 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 16237
/proc/meminfo: memFree=1729288/2059040 swapFree=4136136/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.701334 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 16237
/proc/meminfo: memFree=1729288/2059040 swapFree=4136136/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.5014 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 16240
/proc/meminfo: memFree=1520208/2059040 swapFree=4136136/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
[pid=16239] ppid=16237 vsize=306788 CPUtime=1.49
/proc/16239/stat : 16239 (PBPASSolver) R 16237 16237 15787 0 -1 4202496 76172 0 0 0 63 86 0 0 25 0 1 0 52837725 314150912 76110 1992294400 134512640 134902295 4288732592 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/16239/statm: 76697 76114 256 96 0 75909 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 315488

[startup+3.10153 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 16240
/proc/meminfo: memFree=1316228/2059040 swapFree=4136136/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
[pid=16239] ppid=16237 vsize=583716 CPUtime=3.09
/proc/16239/stat : 16239 (PBPASSolver) R 16237 16237 15787 0 -1 4202496 145418 0 0 0 142 167 0 0 25 0 1 0 52837725 597725184 145356 1992294400 134512640 134902295 4288732592 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/16239/statm: 145929 145356 256 96 0 145141 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 592416

[startup+6.30078 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 16240
/proc/meminfo: memFree=799892/2059040 swapFree=4136136/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
[pid=16239] ppid=16237 vsize=1052900 CPUtime=6.28
/proc/16239/stat : 16239 (PBPASSolver) R 16237 16237 15787 0 -1 4202496 262702 0 0 0 327 301 0 0 25 0 1 0 52837725 1078169600 262640 1992294400 134512640 134902295 4288732592 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/16239/statm: 263225 262642 256 96 0 262437 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 1061600

[startup+12.7013 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 16240
/proc/meminfo: memFree=10136/2059040 swapFree=4136136/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
[pid=16239] ppid=16237 vsize=1770628 CPUtime=12.59
/proc/16239/stat : 16239 (PBPASSolver) R 16237 16237 15787 0 -1 4202496 442142 0 0 0 744 515 0 0 25 0 1 0 52837725 1813123072 442080 1992294400 134512640 134902295 4288732592 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 10
/proc/16239/statm: 442657 442080 256 96 0 441869 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 1779328



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+13.6004 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 16240
/proc/meminfo: memFree=9320/2059040 swapFree=4136124/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
[pid=16239] ppid=16237 vsize=1835908 CPUtime=13.51
/proc/16239/stat : 16239 (PBPASSolver) R 16237 16237 15787 0 -1 4202496 458462 0 0 0 809 542 0 0 25 0 1 0 52837725 1879969792 458400 1992294400 134512640 134902295 4288732592 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 10
/proc/16239/statm: 458977 458400 256 96 0 458189 0
Current children cumulated CPU time (s) 13.51
Current children cumulated vsize (KiB) 1844608

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+13.6004 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 16240
/proc/meminfo: memFree=9320/2059040 swapFree=4136124/4192956
[pid=16237] ppid=16235 vsize=8700 CPUtime=0
/proc/16237/stat : 16237 (run) S 16235 16237 15787 0 -1 4202496 389 134 0 0 0 0 0 0 21 0 1 0 52837725 8908800 250 1992294400 4194304 4922060 140736800443600 18446744073709551615 238060936325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/16237/statm: 2175 250 211 178 0 68 0
[pid=16239] ppid=16237 vsize=1835908 CPUtime=13.51
/proc/16239/stat : 16239 (PBPASSolver) R 16237 16237 15787 0 -1 4202496 458462 0 0 0 809 542 0 0 25 0 1 0 52837725 1879969792 458400 1992294400 134512640 134902295 4288732592 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 10
/proc/16239/statm: 458977 458400 256 96 0 458189 0
Current children cumulated CPU time (s) 13.51
Current children cumulated vsize (KiB) 1844608

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 16237 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=2999
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=999
# CPU time returned by wait4() is 0.003998
# while last known CPU time is 13.51
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 13.631
CPU time (s): 13.51
CPU user time (s): 8.09
CPU system time (s): 5.42
CPU usage (%): 99.1122
Max. virtual memory (cumulated for all children) (KiB): 1844608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.002999
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= 523
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= 3
involuntary context switches= 3

runsolver used 0.030995 second user time and 0.077988 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-17 18:23:43
IDJOB=2674532
IDBENCH=1466
IDSOLVER=1174
FILE ID=node026/2674532-1276791823
PBS_JOBID= 11176614
Free space on /tmp= 62552 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-cache-ibm-q-unbounded.Icl2arity.ucl.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2674532-1276791823/watcher-2674532-1276791823 -o /tmp/evaluation-result-2674532-1276791823/solver-2674532-1276791823 -C 1800 -W 2000 -M 1800  run HOME/instance-2674532-1276791823.opb

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

MD5SUM BENCH= f83049a5e6f779c8a894a05e03ae7f50
RANDOM SEED=1789083425

node026.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1729684 kB
Buffers:         93304 kB
Cached:         142328 kB
SwapCached:       9388 kB
Active:          84116 kB
Inactive:       163936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1729684 kB
SwapTotal:     4192956 kB
SwapFree:      4136136 kB
Dirty:            3112 kB
Writeback:           0 kB
AnonPages:       10916 kB
Mapped:           9240 kB
Slab:            59532 kB
PageTables:       3992 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182092 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= 62552 MiB
End job on node026 at 2010-06-17 18:23:59