Trace number 39728

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, and are wall clock time (not CPU 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
bsolo 2006/05UNSAT 68.4436 68.4786

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/
uclid_pb_benchmarks/normalized-ooo.tag8.ucl.opb
MD5SUMec41e051a85a6b1d97ef15d7e169228d
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.497924
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables3249
Total number of constraints8983
Number of constraints which are clauses8599
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints384
Minimum length of a constraint1
Maximum length of a constraint11
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 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00	c Time Limit set via PBTIMEOUT to 1800
0.01	c INFO: OSL Context initialized.
0.17	c Initial problem consists of 3249 variables and 8983 constraints.
0.23	c Using non-optimization problem switches.
0.23	c No problem reductions applied in OPT. instance.
0.23	c	preprocess terminated. Elapsed time: 0.215
0.23	c After prepocess the problem consists of 3053 variables and 8587 constraints.
0.46	c Restart #1 #Var: 3053 LB: 0 @ 0.453
0.72	c Restart #2 #Var: 3053 LB: 0 @ 0.707
1.93	c Restart #3 #Var: 3053 LB: 0 @ 1.919
3.33	c Restart #4 #Var: 3053 LB: 0 @ 3.318
5.00	c Restart #5 #Var: 3053 LB: 0 @ 4.984
6.37	c Restart #6 #Var: 3053 LB: 0 @ 6.357
8.67	c Restart #7 #Var: 3053 LB: 0 @ 8.653
9.01	c Restart #8 #Var: 3053 LB: 0 @ 8.997
13.05	c Restart #9 #Var: 3053 LB: 0 @ 13.037
18.47	c Restart #10 #Var: 3053 LB: 0 @ 18.448
24.14	c Restart #11 #Var: 3053 LB: 0 @ 24.12
29.72	c Restart #12 #Var: 3053 LB: 0 @ 29.701
35.85	c Restart #13 #Var: 3053 LB: 0 @ 35.822
43.10	c Restart #14 #Var: 3053 LB: 0 @ 43.074
51.38	c Restart #15 #Var: 3053 LB: 0 @ 51.348
60.45	c Restart #16 #Var: 3053 LB: 0 @ 60.418
68.47	s UNSATISFIABLE
68.47	c Exit Code: 20
68.47	c Total time: 68.436 s

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node0/watcher-39728-1149238353 -o ROOT/results/node0/solver-39728-1149238353 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node0/39728-1149238353/instance-39728-1149238353.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.92 0.98 0.93 2/64 8686
/proc/meminfo: memFree=1612304/2055920 swapFree=4192812/4192956
[pid=8686] ppid=8684 vsize=4924 CPUtime=0
/proc/8686/stat : 8686 (bsolo) R 8684 8686 8641 0 -1 0 267 0 0 0 0 0 0 0 19 0 1 0 189496824 5042176 238 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134559382 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8686/statm: 1231 243 155 55 0 123 0

[startup+10.0018 s]
/proc/loadavg: 0.93 0.98 0.93 2/64 8686
/proc/meminfo: memFree=1599912/2055920 swapFree=4192812/4192956
[pid=8686] ppid=8684 vsize=17008 CPUtime=9.98
/proc/8686/stat : 8686 (bsolo) R 8684 8686 8641 0 -1 0 3491 0 0 0 995 3 0 0 25 0 1 0 189496824 17416192 3407 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134541302 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8686/statm: 4252 3407 300 55 0 3144 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 17008

[startup+20.0079 s]
/proc/loadavg: 0.94 0.98 0.93 2/64 8686
/proc/meminfo: memFree=1597352/2055920 swapFree=4192812/4192956
[pid=8686] ppid=8684 vsize=19516 CPUtime=19.98
/proc/8686/stat : 8686 (bsolo) R 8684 8686 8641 0 -1 0 4135 0 0 0 1994 4 0 0 25 0 1 0 189496824 19984384 4051 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134541526 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8686/statm: 4879 4051 300 55 0 3771 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 19516

[startup+30.014 s]
/proc/loadavg: 0.95 0.98 0.93 2/64 8686
/proc/meminfo: memFree=1593960/2055920 swapFree=4192812/4192956
[pid=8686] ppid=8684 vsize=22948 CPUtime=29.98
/proc/8686/stat : 8686 (bsolo) R 8684 8686 8641 0 -1 0 4996 0 0 0 2993 5 0 0 25 0 1 0 189496824 23498752 4912 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134541344 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8686/statm: 5737 4912 300 55 0 4629 0
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 22948

[startup+40.0201 s]
/proc/loadavg: 0.96 0.98 0.93 2/64 8686
/proc/meminfo: memFree=1590568/2055920 swapFree=4192812/4192956
[pid=8686] ppid=8684 vsize=26516 CPUtime=39.98
/proc/8686/stat : 8686 (bsolo) R 8684 8686 8641 0 -1 0 5865 0 0 0 3992 6 0 0 25 0 1 0 189496824 27152384 5781 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 8504955 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8686/statm: 6629 5781 300 55 0 5521 0
Current children cumulated CPU time (s) 39.98
Current children cumulated vsize (Kb) 26516

[startup+50.0273 s]
/proc/loadavg: 0.96 0.98 0.93 2/64 8686
/proc/meminfo: memFree=1587624/2055920 swapFree=4192812/4192956
[pid=8686] ppid=8684 vsize=29428 CPUtime=49.99
/proc/8686/stat : 8686 (bsolo) R 8684 8686 8641 0 -1 0 6596 0 0 0 4991 8 0 0 25 0 1 0 189496824 30134272 6512 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534063 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8686/statm: 7357 6512 300 55 0 6249 0
Current children cumulated CPU time (s) 49.99
Current children cumulated vsize (Kb) 29428

[startup+60.0334 s]
/proc/loadavg: 0.97 0.98 0.93 2/64 8686
/proc/meminfo: memFree=1584872/2055920 swapFree=4192812/4192956
[pid=8686] ppid=8684 vsize=32200 CPUtime=60
/proc/8686/stat : 8686 (bsolo) R 8684 8686 8641 0 -1 0 7286 0 0 0 5991 9 0 0 25 0 1 0 189496824 32972800 7202 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534798 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8686/statm: 8050 7202 300 55 0 6942 0
Current children cumulated CPU time (s) 60
Current children cumulated vsize (Kb) 32200

Child status: 20
Real time (s): 68.4786
CPU time (s): 68.4436
CPU user time (s): 68.3336
CPU system time (s): 0.109983
CPU usage (%): 99.9489
Max. virtual memory (cumulated for all children) (Kb): 32200

Launcher Data (download as text)

Begin job on node0 on Fri Jun  2 08:52:33 UTC 2006


FILE ID= 39728-1149238353

PBS_JOBID= 297211

BENCH NAME= ROOT/tmp/node0/39728-1149238353/instance-39728-1149238353.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node0/39728-1149238353/instance-39728-1149238353.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node0/watcher-39728-1149238353 -o ROOT/results/node0/solver-39728-1149238353 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node0/39728-1149238353/instance-39728-1149238353.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  ec41e051a85a6b1d97ef15d7e169228d

RANDOM SEED= 394960466


/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		: 3000.236
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.236
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1612576 kB
Buffers:         31592 kB
Cached:         333908 kB
SwapCached:          0 kB
Active:         104484 kB
Inactive:       278072 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1612576 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             180 kB
Writeback:           0 kB
Mapped:          27616 kB
Slab:            46748 kB
Committed_AS:   174256 kB
PageTables:       1480 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node0 on Fri Jun  2 08:53:42 UTC 2006