Trace number 2661007

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
SAT4J PB CuttingPlanes 2.2.0 2010-05-26UNSAT 0.522919 0.417111

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/
aloul/FPGA_SAT05/normalized-chnl15_25_pb.cnf.cr.opb
MD5SUMddad6b8774f3cb7ea8e2d9ff3a650623
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 benchmark0.029994
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables750
Total number of constraints80
Number of constraints which are clauses50
Number of constraints which are cardinality constraints (but not clauses)30
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint15
Maximum length of a constraint25
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 26
Number of bits of the biggest sum of numbers5
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.08/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2010 Daniel Le Berre
0.08/0.14	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.14	c See www.sat4j.org for details.
0.08/0.15	c version 2.2.0.v20100526
0.08/0.15	c java.runtime.name	Java(TM) SE Runtime Environment
0.08/0.15	c java.vm.name		Java HotSpot(TM) Server VM
0.08/0.15	c java.vm.version	11.2-b01
0.08/0.15	c java.vm.vendor	Sun Microsystems Inc.
0.08/0.15	c sun.arch.data.model	32
0.08/0.16	c java.version		1.6.0_12
0.08/0.16	c os.name		Linux
0.08/0.16	c os.version		2.6.18-164.el5
0.08/0.16	c os.arch		i386
0.08/0.16	c Free memory 		1393557488
0.08/0.16	c Max memory 		1395916800
0.08/0.16	c Total memory 		1395916800
0.08/0.16	c Number of processors 	2
0.21/0.22	c Pseudo Boolean Optimization
0.21/0.22	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.21/0.22	c --- Begin Solver configuration ---
0.21/0.22	c Stops conflict analysis at the first Unique Implication Point
0.21/0.22	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@16fd0b7
0.21/0.22	c Learn all clauses as in MiniSAT
0.21/0.22	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.21/0.22	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.21/0.22	c No reason simplification
0.21/0.22	c Armin Biere (Picosat) restarts strategy
0.21/0.22	c Glucose learned constraints deletion strategy
0.21/0.22	c timeout=2147483s
0.21/0.22	c DB Simplification allowed=false
0.21/0.22	c --- End Solver configuration ---
0.21/0.22	c solving HOME/instance-2661007-1276323271.opb
0.21/0.22	c reading problem ... 
0.35/0.35	c ... done. Wall clock time 0.129s.
0.35/0.35	c #vars     750
0.35/0.35	c #constraints  80
0.35/0.35	c constraints type 
0.35/0.35	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 50
0.35/0.35	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 30
0.35/0.39	c starts		: 1
0.35/0.39	c conflicts		: 1
0.35/0.39	c decisions		: 106
0.35/0.39	c propagations		: 366
0.35/0.39	c inspects		: 366
0.35/0.39	c learnt literals	: 0
0.35/0.39	c learnt binary clauses	: 0
0.35/0.39	c learnt ternary clauses	: 0
0.35/0.39	c learnt clauses	: 0
0.35/0.39	c ignored clauses	: 0
0.35/0.39	c root simplifications	: 0
0.35/0.39	c removed literals (reason simplification)	: 0
0.35/0.39	c reason swapping (by a shorter reason)	: 0
0.35/0.39	c Calls to reduceDB	: 0
0.35/0.39	c number of reductions to clauses (during analyze)	: 0
0.35/0.39	c number of learned constraints concerned by reduction	: 0
0.35/0.39	c number of learning phase by resolution	: 0
0.35/0.39	c number of learning phase by cutting planes	: 0
0.35/0.39	c speed (assignments/second)	: 8318.181818181818
0.35/0.39	c non guided choices	106
0.35/0.39	c learnt constraints type 
0.35/0.39	c constraints type 
0.35/0.39	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 50
0.35/0.39	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 30
0.35/0.39	s UNSATISFIABLE
0.35/0.39	c Total wall clock time (in seconds): 0.176

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-2661007-1276323271/watcher-2661007-1276323271 -o /tmp/evaluation-result-2661007-1276323271/solver-2661007-1276323271 -C 1800 -W 2000 -M 1800 java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2661007-1276323271.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: 1.03 1.05 1.01 3/106 8113
/proc/meminfo: memFree=1866936/2059040 swapFree=4135896/4192956
[pid=8113] ppid=8111 vsize=248 CPUtime=0
/proc/8113/stat : 8113 (java6) R 8111 8113 7191 0 -1 4194304 109 0 0 0 0 0 0 0 23 0 1 0 5982547 253952 28 1992294400 134512640 134550932 4291810480 18446744073709551615 6971870 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/8113/statm: 62 28 21 10 0 23 0

[startup+0.0781861 s]
/proc/loadavg: 1.03 1.05 1.01 3/106 8113
/proc/meminfo: memFree=1866936/2059040 swapFree=4135896/4192956
[pid=8113] ppid=8111 vsize=1521796 CPUtime=0.06
/proc/8113/stat : 8113 (java) S 8111 8113 7191 0 -1 4202496 3735 0 1 0 4 2 0 0 15 0 7 0 5982547 1558319104 3177 1992294400 134512640 134550932 4287606592 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0 0
/proc/8113/statm: 380449 3177 1036 10 0 377759 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1521796

[startup+0.101185 s]
/proc/loadavg: 1.03 1.05 1.01 3/106 8113
/proc/meminfo: memFree=1866936/2059040 swapFree=4135896/4192956
[pid=8113] ppid=8111 vsize=1524024 CPUtime=0.08
/proc/8113/stat : 8113 (java) S 8111 8113 7191 0 -1 4202496 3933 0 1 0 5 3 0 0 15 0 12 0 5982547 1560600576 3373 1992294400 134512640 134550932 4287606592 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/8113/statm: 381006 3373 1073 10 0 378308 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1524024

[startup+0.301199 s]
/proc/loadavg: 1.03 1.05 1.01 3/106 8113
/proc/meminfo: memFree=1866936/2059040 swapFree=4135896/4192956
[pid=8113] ppid=8111 vsize=1526368 CPUtime=0.35
/proc/8113/stat : 8113 (java) S 8111 8113 7191 0 -1 4202496 5340 0 1 0 31 4 0 0 15 0 12 0 5982547 1563000832 4778 1992294400 134512640 134550932 4287606592 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/8113/statm: 381592 4778 1359 10 0 378894 0
Current children cumulated CPU time (s) 0.35
Current children cumulated vsize (KiB) 1526368

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

[startup+0.40121 s]
/proc/loadavg: 1.03 1.05 1.01 3/106 8113
/proc/meminfo: memFree=1866936/2059040 swapFree=4135896/4192956
[pid=8113] ppid=8111 vsize=1527660 CPUtime=0.51
/proc/8113/stat : 8113 (java) S 8111 8113 7191 0 -1 4202496 5758 0 1 0 47 4 0 0 15 0 13 0 5982547 1564323840 5196 1992294400 134512640 134550932 4287606592 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/8113/statm: 381915 5196 1385 10 0 379217 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1527660

Child status: 20
Real time (s): 0.417111
CPU time (s): 0.522919
CPU user time (s): 0.475927
CPU system time (s): 0.046992
CPU usage (%): 125.367
Max. virtual memory (cumulated for all children) (KiB): 1527660

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.475927
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5759
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 143
involuntary context switches= 65

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-12 08:14:31
IDJOB=2661007
IDBENCH=1407
IDSOLVER=1165
FILE ID=node026/2661007-1276323271
PBS_JOBID= 11173158
Free space on /tmp= 62508 MiB

SOLVER NAME= SAT4J PB CuttingPlanes 2.2.0 2010-05-26
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-chnl15_25_pb.cnf.cr.opb
COMMAND LINE= java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2661007-1276323271/watcher-2661007-1276323271 -o /tmp/evaluation-result-2661007-1276323271/solver-2661007-1276323271 -C 1800 -W 2000 -M 1800  java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2661007-1276323271.opb

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

MD5SUM BENCH= ddad6b8774f3cb7ea8e2d9ff3a650623
RANDOM SEED=558709393

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:       1867208 kB
Buffers:          4632 kB
Cached:          98944 kB
SwapCached:      23112 kB
Active:          64196 kB
Inactive:        64740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1867208 kB
SwapTotal:     4192956 kB
SwapFree:      4135896 kB
Dirty:             468 kB
Writeback:           0 kB
AnonPages:        9980 kB
Mapped:           7968 kB
Slab:            40896 kB
PageTables:       4048 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181328 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= 62508 MiB
End job on node026 at 2010-06-12 08:14:32